A/N: I don't own the RWBY or the Warhammer 40K Universe. If I did, then a lot of mishaps would have happened years ago.

Words: "Words"

Thoughts: 'Thoughts'

Yelling: "YELLING"

Low Gothic: "Speaking"

- Irileth, Cadia -

- Date: 999.M41 -

- Status: Under siege -

The sun had set hours ago, engulfing the city in a blanket of black. The threat of Chaos lingers in the air and resides within the hearts of citizens as Abaddon has unleashed his 13th Black Crusade on Cadia. At the edge of the city, walls littered with heavily fortified bunkers have been erected to fend off the Forces of Chaos. They knew that the walls would crumble, but every minute the Traitors spend trying bring the walls down is another minute that Cadia has been given to survive.

Within these walls are the 75th Cadian Regiment, also known as the Bastion of Steel, who are prepared to protect the city of Irileth down to the last man. At least, that's what the Commissars want from the troops as Irileth is one of the largest non-Kasr cities of Cadia and it was one the closest to the Forces of Chaos' first stronghold. As of this moment, the front has been unnaturally quiet. This has caused some suspicion amongst the troops, but most of them couldn't let the opportunity to catching up on sleep pass by. Hence, the majority of troops lay on the ground fast asleep, even the Commissars, but with their weapons tucked in their hands. Only a few stayed awake, acting as watchmen to warn others of enemy movement.

It was at this moment when Chaos made its move.

"INCOMING!" A voice yelled in the darkness of night, a sentry that had spotted the enemy's movement. As soon as those words left his mouth, gunshots and lasfire erupted from the opposite side. One bolt lodged itself into his skull before detonating, showering the Guardsmen and women around him with his blood and brain matter. Undeterred by the brutal death of their comrade, the men and women of the 75th Cadian Regiment got to their feet and returned fire. Streams of red light erupted from the barrels of their lasguns, killing off cultists and members of Traitor Guard Regiments. Their fortifications provided much needed protection from the besieging Traitors, but they did not provide a proper defense against the sight of the giants that spearheaded the assault.

"Chaos Marines!" A lone guardswoman exclaimed as she backpedaled away from the firing port, but she was silenced by a bolt to the back of the head, courtesy of a Commissar. The others who also froze from the sight of Chaos Marines were jolted back into reality by the death of their comrade.

"Anyone else? No? So stand your ground and keep firing!" The commissar turns to a group of massive humanoid creatures behind him. "Abhumans, see those traitors? Kill them!"

"Yes sah!" The Ogryn Gun Luggers replied in unison. One by one, these sanctioned abhumans took their positions and let loose a hail of bolts from the heavy bolters they carried. However, their accuracy was appalling, so many of the bolts missed their mark. The few bolts that had managed to hit their desired targets were not enough to put down the Traitor Marines.

"BLOOD FOR THE BLOOD GOD!" One of the Chaos marines yelled out, his vox speakers amplifying his voice, whilst brandishing his chain axe indicating his status as a Khornate Berzerker. Said Berzerker broke into a full sprint along with his fellow berzerkers. Before they could reach the fortifications, the thunderous boom of Leman Russ cannons unleashing hell at the Chaos Marines ended their charge. A bright blue ball of plasma escaped the barrel of a Leman Russ Executioner's main cannon, eradicating a sizable amount of Chaos Marines as well as Traitor Guard Troopers. The night, once as dark as the void, is illuminated by weapons discharge from both sides.

Any advancing Chaos Marines were brought down by accurate fire from the heavy bolters mounted on the Leman Russ tanks or by cannon fire that tore their bodies apart. Any cultists that thought they could use these superhumans as cover were surprised to see their lords fall. Their surprise would be short lived as they would be pelted with lasbolts and stubber rounds. But they did not let these losses slow down their assault. Rather, they kept moving on, eager to spread the corruption of Chaos to the loyalist dogs of the corpse emperor.

At the distance, Chaos Vindicators and Leman Russ Battle Tanks can be seen as they made their way to the walls. "Vindicators at the tree line, concentrate fire!" A tank commander yelled into his vox communicator and savoured the sound of four Leman Russ turrets turning in unison to eradicate the threats. In a symphony of destruction, the four cannons unloaded their blessed anti-tank shells at the Vindicators to great effect.

*BOOM*

A Leman Russ exploded as a traitor tank landed a shot at a nick between the turret and the hull. A few more fall from plasma cannon fire from Traitor troops. The burning husks of Cadian armour acted as light for the defenders and markers for the attackers. Then, among the sounds of gunfire and lasfire, a whistling could be heard. "EARTHSHAKERS!" True to the guardsman's word, Basilisk Earthshaker shells peppered the armour blockade as well as tore off a section of the Iriliethian wall. Guardsmen scurried to fill in the gap in the wall with heavy weapons teams, carefully stepping over bits of gore that once belonged to their fellow Cadians.

To aid with the defense of the gap, Colonel Fontane had requested one of the Leman Russes to take up a defensive position at the gap. The troopers waited, idly fingering the trigger guards of their weapons. To their left, they could hear the mighty treads of a Leman Russ Executioner crushing rubble and its main cannon swivelling to aim at the hole on the wall. As they waited, the others who were still positioned within the walls kept firing at the Chaos troops, albeit the steady increase of friendly casualties. The sheer amount of enemy troops caused constant reloading and cooling of overheating weaponry.

Little do they know of the threats above.

Descending from the skies, with midnight blue power armour, came the Night Lords. These marines used their Jump Packs to propel themselves from the forest onto a bunker at the top of the fortifications. The weight of their armour coupled with the force of their descent caused the bunker's ceiling to collapse and consequently drop them into the bunker where a squad Guardsmen took their defiant stand against Chaos. The very sight of these infamous traitors appearing through the ceiling caused many Guard troopers to freeze and stare at them in fear. Low and sinister chuckling can be heard from the head of the Chaos Raptor Squad. The standoff was broken when the Commissar of the current squad of Guardsmen barked orders at the troops whilst taking shots of his own with the bolt pistol in his hand. Snapping out of their shock, the squad turned and opened fire at the Night Lords.

The Night Lords retaliated by throwing themselves at the fearful guardsmen, brandishing their lightning claws. The first Imperial soldier to fall from the Night Lords was a screaming lad, newly promoted from whiteshield to guardsman, frantically firing his lasgun at the advancing Astartes. His screams increased in volume as a Chaos Raptor impaled him with lightning claws before forcefully splitting him in half. A Chaos Marine falls from an attack from behind. Another turns to see an Ogryn lumbering towards the marine squad with a heavy bolter in its arms. Due to the smaller space, the Ogryn's shots had a higher chance of hitting something. This is evident from the explosion of a Night Lord's head and of an unlucky guardswoman's stomach. However, an Ogryn was no match for a Space Marine, Chaos or Loyalist, as it took a few well placed shots from a bolt pistol to down the stubborn abhuman.

As the massacre occurred within the bunker, other Night Lords Marines have followed suit and have conducted assaults on the other bunkers. Some were disposed of due to the presence of melta or plasma weaponry while most were successful in the eradication of a bunker's inhabitants.

The carnage that was occurring within the walls was not unnoticed by either side. One of the Night Lords squads hung a flayed corpse of an Imperial Guardsman outside a bunker, riling up the invaders and making them continue their assault with newfound gusto. Furthermore, some of the vox communicators were hijacked by the Marines. Certain frequencies broadcasted the guardsmen and womens' screams of agony and the gleeful laughter of their torturers.

The only thing in the path of Chaos victory were the Bastion of Steel's heavy armour, artillery, and the remaining guardsmen inside bunkers. With the Imperials, multiple vox messages were sent out, warning of the presence of Night Lords Raptors killing men in the bunkers. Men inside unaffected bunkers scrambled to find any form of weaponry that could give them a chance against Chaos Marines. Colonel Fontane and his squad heard the message and made haste to aid the troopers.

Behind him were squads of legendary Imperial Soldiers.

Behind Colonel Fontane were squads of Kasrkins.

With the aid of genetic modifications, the Kasrkins sprinted past the command squad to aid in the hunt for Chaos Marines. One of the squads entered one of the wall's lower bunkers directly to the left of the gaping hole in the wall. The mere presence of the Kasrkin brought out hopeful smiles to the fearful troopers. One of the smaller members of the Kasrkin squad stepped forward and addressed the squad.

"Brothers and sisters of Cadia, if I may ask, where are the treacherous Night Lords?" The owner of the voice was undoubtedly female and fairly young.

"They are on the third level. Can we come along? I wanna see those pieces of shite burn in holy fire." A guardsman responded, brandishing his flamer. One can immediately feel the arrogance waving off of him.

"No. You must stay here and prevent the traitors from coming any closer to the wall. Your mission just as important as ours for we do this for Cadia." Another Kasrkin replied as politely as he could, his lack of a helmet indicates his rank as sergeant. Although, the sergeant was a little irritated at the Guardsman's bravado. He had been tempted to smack him around and make him reconsider on what he was exactly going to face. Thankfully, a moment of eye contact with the other sergeant made him forget about it as he knew that the lad will get a mouthful and more from his sergeant.

"Understood sir." The ground shakes, and explosions can be heard outside. One of the troopers peers out of the firing ports before raising his lasgun and began firing.

"They're coming! The Russes are being overrun!" The other troopers manned their posts with haste as the Kasrkin left the bunker to ascend to the Night Lords' location. As they went up the steps, the Kasrkin could hear the Guardsmen's sergeant bark into a vox communicator requesting for an immediate bombardment by the Basilisks on their location. Shortly after, the telltale whistling of artillery rounds could be heard and the ground shook as the shells exploded outside. The squad moved on, unfazed by the noise or by the vibrations.

"Brothers and Sisters of Cadia, huh? Has a nice ring to it, don't you think Krissa?" One of the Kasrkin teased the female speaker.

"Shut up Gav!" The newly identified Krissa snapped back at the man, smacking him at the back of the head. The others snickered, but were shut up by Krissa turning around at glared at them. Though they couldn't see her eyes due to the visor, but they had this feeling that she was glaring Astartes-sized combat knives at them. This woman was one of the scariest things they had faced, and that's saying something considering their background.

"Alright, settle down." The low voice of their sergeant ceased their bickering. "Now is not the time to kid around. We are Kasrkin, stalwart defenders of the Kasrs of Cadia, not imbecilic and spoiled children. So get your act together and keep moving, the reputation of every Kasrkin is going to get tarnished if you keep this up and Cadia's chances of survival would plummet because of the lot of you. Especially you Krissa, now is not the time to be emotional. Be steel; unyielding, unforgiving and unrelenting." The sergeant then pushed past his subordinates and carried on in the dark corridors. The others wordlessly shouldered their weapons and followed along.

"Aye Sergeant Acrius." One of them mumbled as he shifted the melta gun in his hands.

"Sorry dad." Krissa mumbled as the squad passed by.

On the other side of the wall, the Forces of Chaos received an unknown factor that would give them an edge over their opponents. In a burst of psychic energy, a Sorcerer of the Word Bearers appeared within the heavy forest, scaring cultists and Traitor Guard troopers that were operating artillery.

"My Lord," One of the cultists ran to the Chaos Astartes and bowed down. "Thank you for gracing us with your presence. The lapdogs of the Corpse-Emperor are defending that damnable wall with everything they have, but with you by our side they will fall!" His short tirade got him hoisted into the air by the Sorcerer, whose visor gave the cultist the chills.

"You talk too much." The sorcerer spat out before making the man's head blow up with Warp energy. "The rest of you better start shelling those loyalist dogs or with the Gods as my witness, I will annihilate every single one of you." He growled at the staring cultists, revelling at the frantic noises that they made as he walked to the frontlines.

Acrius held a closed fist up, prompting the squad to stop in their tracks. With slow and silent hand signals, he notified the squad of an enemy presence not too far ahead. Before any of them could respond to his command, a voice reverberated in the darkness.

"Pitiful dogs." The Kasrkin turned and opened fire at the possible source of the voice, which was right in front of them. With a high-pitched whine, one of the Kasrkin fired his plasma gun and watched as the bright blue ball made contact with a large silhouette at the end of the corridor. To their horror, the silhouette was illuminated and had shown that it was an upright corpse of an ogryn with a guardsman crucified to its chest. After the corpse had disintegrated, one of the Night Lords appeared at the end of the corridor, staring at the Kasrkin as if he was mocking them for their incompetence.

Before the Kasrkin could unleash another barrage of hellgun lasbolts, melta-beams, and plasma shots, the Night Lord in front of them let out an inhuman scream amplified by his vox speakers. The sheer volume of the sound caused some of their ears to bleed and for Acrius to throw up. When the auditory onslaught ended, two Night Lords Astartes appeared from the ceiling, hiding with the aid of psychically created shadows, and dropped down behind the Kasrkin.

In an instant, four of the ten man squad fell by the hands of the Astartes. As the rest struggled to recover, the Night Lord in front of them charged with another bout of inhuman screaming. Although he was dazed, Acrius managed to roll under the charging giant and fire a couple of hellgun lasbolts at the back of the Chaos Astartes. After witnessing the brutal death of their comrades at such a close proximity, Gav and the plasma gunner fired at the two Astartes behind them. The other Kasrkin around them were still rebounding from the nausea that came with the screaming. Unbeknownst to the them, the other Night Lord was still running full speed behind them.

Sharp and searing pain tore through their abdomen, and upon investigation, they saw that they had been impaled by the claws of the Night Lord. With weakening limbs, Gav latched onto a pin attached to a frag grenade. He took a quick glance at his squadmate and saw that he was also in the same predicament. With a whispered prayer to the God-Emperor, he pulled the pin and waited for the world to go black.

In a resounding explosion, the Night Lords were blown back with the exception of Gav's killer. He had been obliterated by the explosive power of four frag grenades and two krak grenades. Thankfully, the traitor's massive bulk had shielded the remaining survivors from the worst of the explosion, although they were still blown away by the explosion. The explosion, unfortunately, had created a large gaping hole on the wall that exposed both sides. With the creation of said hole, the traitors opened fire at the exposed Kasrkin while others made haste to find a way to climb it.

Acrius dragged his daughter closer to the bunker while the other Kasrkin, a large man by the name of Jaegus, carried another dazed member of the destroyed squad. Shouts from the traitors on the ground indicated that they had lost interest in trying to kill them and had opted to scaling the wall. The sergeant and his other companion laid down their comrades as gently as they could before aiming their weapons at the last known location of the Night Lords. Sure enough, the Night Lords were where they were previously seen, their red lenses glaring at the Kasrkin as smoke wafted from their armour. New holes of varying sizes littered their armour, one of them took out a lightning claw that had managed to impale his shoulder. Without hesitation, the two conscious Kasrkin opened fire.

Meanwhile, the sound of gunfire cleared the heads of the other two somewhat. Krissa shakily got to her feet and saw that her father and another squad member were shooting at the remaining NIght Lords. She became worried when she saw them jump towards her squadmates, with claws at the ready. Raising her hellgun, she too opened fire at the traitors. One of them was shot in the head, courtesy of Acrius, and fell to the ground with a very satisfying crunch. The other only roared as he continued his charge, uncaring of the injuries that he was sustaining by the hellguns at the Kasrkin's disposal. She heard the telltale jingling of bolt rounds being loaded and turned around to see her other squadmate finish up his set up of a heavy bolter.

"DUCK!" She hollered at her other squadmates. Hearing the franticness of her voice, Acrius and Jaegus dropped to their bellies, revelling at the sound of the baritone noise that the heavy bolter was known to make. The Night Lord was peppered by high-speed large calibre bolts and when the gunner ceased fire, the headless Astartes fell to the ground.

"Everyone alright?" Acrius asked the remains of his squad. He was answered with three 'ayes'. Nodding, he activated his vox communicator and spoke into the encrypted frequency that the Kasrkins used. "This is Safeguard Red, my squad has dispatched of three traitor marines located near Bunker W3-19, requesting reinforcements as there are only four of us left, how copy?"

After a few seconds of waiting, a voice rose from the static. "Safeguard Red, this is Safeguard Omega, reinforcements unavailable. Safeguards Gold and Black have not responded to our calls, while Safeguard Blue and White are currently pinned by traitors that have breached the wall near Bunker E2-27 and W1-05 respectively. You're going to have to work with what you have, over."

"Damn," Acrius muttered. He turned to his troops and spoke impassively, "We won't be getting reinforcements soon, the others are either dead or pinned down." The squad remained unmoving, any feeling of remorse or sorrow was forcefully purged from their minds for the better of the mission. "So we've got a choice, either we hold this position and pick off traitors over at the ground, or we keep hunting with only the four of us with no back up."

"I say we keep hunting Sarge. Those bastards have to learn what happens when they step foot on Cadia." Jaegus stated, no doubt angry from the death of a close friend in the squad.

"I second that." Krissa spoke up, causing her father to look at her with a raised eyebrow. "Gav might have been a total ass to me at times, but he was a true soldier and a good friend. I am not going to just let those good for nothing lowlifes walk away from the Hammer of the Imperium." Cadmus, the heavy bolter gunner, made eye contact with the sergeant. Maintaining eye contact with his superior, Cadmus nodded his head before standing up to reposition himself beside Krissa. Due to an accident during his childhood, the poor lad could not speak. His inability to speak had caused some confusion and issues when he was initially placed in Safeguard Red. The issue was resolved through learning sign language, and sometimes just instinctive understanding.

Acrius chuckled at his squad's like-mindedness before speaking into his vox headset once more. "Safeguard Omega, this is Safeguard Red. Thanks for the sitrep, notify Safeguard White that we'll be coming to help, over."

"Acknowledged, Safeguard Red. Watch your six, stay frosty, and happy heretic hunting." The radio operator of Safeguard Omega responded before the line went dead.

"Squad, carry out protocol 105-C before we move out to help the others. Jaegus, take Yalnir's melta, he won't be needing it anymore." The troops went to the corpses of their comrades, muttering prayers to the souls of the fallen Kasrkin for them to bask in the Emperor's holy light for eternity. After the task was accomplished, they collected their dogtags and shed all of the fallen's equipment. The remains of Safeguard Red stacked bloodied armour and weapons before throwing a timed melta bomb at the pile to ensure that archenemy will not get their hands on the equipment.

When Safeguard Red arrived at Safeguard White's position, the remains of Safeguard White were holed up in an adjacent bunker. Traitors had managed to set up a heavy stubber at the corridor and were laying down sustained fire at the bunker's entrance. Whenever they had to reload, the other traitors moved up and opened fire at the Kasrkin that popped out of cover to shoot the enemy. Members of a corrupted Imperial Guard Regiment had foregone defending their rear flank in favour of shedding blood for Chaos. Their lust for blood proved to be their downfall as Safeguard Red appeared from behind them, hellguns and a meltagun decimating the bodies of the traitors.

One of the traitors turned around to investigate the cries of his comrades, only to intercept a stream of molten slag to his face, melting it along with the rest of his body. The silence of the heavy stubber prompted Safeguard White to engage the traitors once again. With Safeguard Red to their rear and Safeguard White engaging them from the front, the remaining traitors were killed with precise and efficient hellgun fire. In a span of 13 seconds, Safeguard White had been liberated from their prolonged firefight by Safeguard Red.

"Thanks for the save Safeguard Red, but we had it covered." One of the Kasrkin of Safeguard White spoke to Acrius.

"Whatever you say." Acrius said, uncaring of the man's comment. "Where's your squad sergeant?"

"Sergeant Tylern? He's dead. Stubber round ricochet off of the wall and nailed him right in the forehead. Bloody shame, he was the last of the previous generation of Safeguard White Kasrkin." To prove his point, the men of Safeguard White ushered Sergeant Acrius inside of the bunker so that he could see the bisected head of Safeguard White's Sergeant. After looking at the mass of bone and brain matter long enough to have it engraved into memory, Acrius looked around and saw that Safeguard White still had seven Kasrkin in the squad.

"Your squad is still pretty healthy. Are you going to continue hunting?"

"Of course sergeant. We'll stop only if the colonel tells us to or if we perish with our guns blazing."

"Alright, stay safe trooper. There are still Night Lords Astartes lurking amongst the shadows of this wall. Keep your guard up and if you feel like someone's watching you, try shooting at the ceiling."

"Sir! There are Astartes approaching from the East wall!" Safeguard White's radio operator piped up from his vox communicator. The room's occupants huddled around him, wary of the information.

"Are they friendly?" Acrius asked. The operator relayed the sergeant's question to the operator on the other end.

"Sergeant, they're Black Templars." The radio operator answered the sergeant with awe evident in his voice. "They're pushing back the traitors. A column of Rhinos are headed for the west wall. ETA three minutes." Cheers erupted in the bunker.

"I'll be damned. Operator, broadcast this to the troops." Acrius ordered the man before grabbing onto his own vox communicator and dialed to the encrypted frequency of Safeguard Squads. "Safeguard Omega, this is Safeguard Red. Safeguard White's safe and secure here, minimal casualties. Have you received intel regarding the incoming backup?"

"Affirmative Safeguard Red, we have received intel about the Black Templars." Safeguard Omega's radio operator paused for a moment. "Seems that Safeguard White's broadcasting the intel, it should give us a fighting edge. New orders from Colonel-Commander Fontane, this is top priority. Take Safeguard White with you and form up with the men at these coordinates. We're mounting a counter-attack now that we've got heavier firepower on our side." Acrius' auspex flared, the location of the men's meeting place was marked onto the built-in map. "Let's move out men."

"I can't believe it, Black Templars are coming to help us out." A guardsman muttered, awe evident in his voice.

"You better, because that means a frakking long firefight awaits us." His friend, the gunner of the Leman Russ Executioner's Plasma Cannon, drily commented. News of the arrival of Astartes were received with varied reactions. Many were thrilled, but some were wary as the arrival of Astartes means either a longer firefight or the Space Marines taking credit for their hard work. Either scenario sucked for guardsmen. The gunner took a long puff from his Iho-stick, his apprehension was starting to become unbearable.

"Hear hear." Another guardsman piped up, his facial scars betraying the mischievous grin on his face. Then he locked eyes with the Commissar, who was listening to the conversation with a scowl on his face. Before any of them could say anything, the commissar held his hand up, demanding silence.

"I do not care of your opinions about the arrival of the Emperor's sons, but know this, once any of you start slackening in your firing, I will not hesitate to shoot you. I refuse to let this regiment's reputation be tarnished by a bunch of spineless cowards fleeing in front of Space Marines. Am I understood?" The Commissar glared at the men, who respond noiselessly with nods of their heads. Once he was satisfied, he moved away to spread the same message with the others.

"Damn, guy's scarier than a Carnifex. And I've seen a Carnifex!" The tank gunner muttered to his friends once the Commissar was out of hearing range. Then he noticed figures running towards their location. He squinted and saw that they were Kasrkin, the ones who were assigned to help them out during the counter-offensive.

"They're here." The man with the scars said, staring at the group of eleven as they made their way to the Lieutenant's location. They watched as the Kasrkin saluted the Lieutenant before the sergeant conversed with the woman. After a few moments of speaking, the Kasrkin saluted her again before making their way to the Leman Russ. As the Kasrkin got closer, the Guardsmen got a better look at them. The ones with red visors had some gouges on their armour as well as holes that could have been from shrapnel. The Kasrkins with the white visors were splattered in blood, whether from their own comrades' or from traitors they could not tell.

"Who's the commander of this vehicle?" The Kasrkin sergeant asked them. The gunner didn't respond, he just snuffed out his Iho-stick before banging at the tank with his helmet.

"Oi! Jax! Someone's here to see you!" Grumbling and cussing could be heard from inside the tank, and before long, a grubby man popped out of the tank's commander hatch.

"What the hell Darus! I was trying to fix something in there!" Jax glared at his subordinate for a moment until he noticed the presence of the Kasrkin. "Aw hell. Hello there, you're the ones who are helping us out right?"

"Affirmative. You know your orders Tanker Jax?" Acrius' face remained impassive, but underneath he was a little annoyed at the tanker's attitude as well as the overbearing stench of grease that permeated from the man.

"Of course sergeant. Lag behind and let my boys shoot stuff while the infantry and Kasrkin advance with the Space Marines." The tank commander responded with a grin on his face, proud of himself to be able to remember a command. Acrius nodded and motioned for the rest of the Kasrkin to prepare near the gate.

With the Rhino convoy, the Black Templars muttered prayers to the Emperor, uncaring of the gunfight that was occurring.

"ETA one minute." The driver announced just as their prayers finished. The Astartes checked their weapons and scanned their armour for any anomalies. One of the Marines stood up, accessories on his armour indicated that he was a Sword Brother.

"My brothers, there has been reports of a flux of psychic activity within the forests, near the traitor's artillery. I do not know what it means, but I would suspect that the archenemy has summoned something or someone of great power from the Warp. Stay vigilant and if you spot the summoned being, eliminate it with extreme prejudice."

"Affirmative Sword Brother," The Space Marines responded in unison. And then, they felt the sensation of their vehicle slowing down.

"We're here. The Emperor protects."

The arrival of the Black Templars was nothing short of divine intervention to the Imperial Guard. The sight of black Rhinos adorned with the crosses of the Black Templars and purity seals marked with the language of the Adeptus Mechanicus was awe-inspiring. However, it was nothing compared to the occupants of the vehicle. With three loud thuds, the Rhinos' back door opened and out of those doors emerged the Crusaders of Dorn. With metallic thuds that reverberated throughout the battlefield, the armour clad giants ran out of the Rhinos and laid down fire at the traitors.

Their tabards fluttered whenever a stray round barely missed them and their armour lit up from the bright flashes of their bolters. A few of them ran towards the traitors to intercept Khornate Berzerkers with chainswords in hand and litanies of hate spewing from their vox speakers. Meanwhile, the forces of the 75th Cadian Regiment stared at the spectacle in amazement, that is until Acrius and the Lieutenant brought them out of their reverie.

"CHARGE!" Acrius yelled at the gathered troops before running out with the Kasrkin.

"CRUSH THEM WITH STEEL!" The Lieutenant responded back, opting her troops to do the same before they all ran out the gate with the Leman Russ Executioner following closely. "Sergeant Tulio, rain hellfire on these coordinates!" The Lieutenant commanded the CO of the Basilisk column through her vox communicator.

"Roger that Lieutenant."

'Ah, more of the Corpse's lapdogs have come to delay the inevitable.' The Chaos Sorcerer thought to himself as he watched the arrival of the Black Templars through the eyes of a Traitor Guardsman. 'I should make an entrance now.' With that, he withdrew from the Traitor Guardsman's mind before preparing to teleport into the battle.

Screams permeated through the night, whether from traitors or from loyalists. Mangled bodies of both parties were littered across the field. Some loyalist troops were screaming their lungs out from the pain of being dismembered by Traitor mortars, heavy bolters, or Basilisk shells. Some of them had to be silenced with a lasbolt to the head as their injuries were too severe for any form of recovery. The ones who received less severe injuries were rushed to a triage centre.

As they killed off the last of the traitors, the scent of ozone assaulted their olfactory senses. In the air, a sigil of Chaos Undivided appeared. Many had to avert their eyes and cover their ears as prayers to the accursed Gods of Chaos were echoing in the night, overpowering the screams of pain and the gunfire. The troops that failed to guard their senses spasmed wildly and began to bleed from the eyes and the ears. They had to be put down, else Chaos corrupted their souls. Then, in a flash and a bang, a figure appeared where the sigil of Chaos was levitating. It was the Chaos Sorcerer.

"This planet will fall to Chaos. Your efforts are futile as they will not stop the inevitable." The sorcerer taunted.

"DIE CHAOS SCUM!" One of the Black Templars roared as they ran towards him. Underneath his helmet, the sorcerer smiled at the Loyalists' denial. Gathering power into his hand, he summoned lighting and had electrocuted at least two of the Templars and heavily injured a third. Another Templar attempted to attack him from the side, his chainsword already cutting the air in a downwards motion. The sorcerer coated his staff-arm in Warp Energy and raised it to block the chainsword. Before the Templar could retaliate, the sorcerer ended his life by making his head explode from within the helmet.

Suddenly, sharp pain seared on the back of his right thigh. He turned around to face the source and saw Cadmus glaring at the sorcerer defiantly. As if a switch had been flipped, the guardsmen opened fire at the sorcerer, forcing him to erect a psychic shield from the lasbolts, bolts, and plasma fire from both the Leman Russ Executioner and the hand-held plasma guns.

"I have had enough of this!" The sorcerer exclaimed. He suddenly rose up a few feet in the air and began chanting. As he recited his lines, bolts of lightning erupted from a psychic dome surrounding him, vaporizing any guardsman nearby. One stray lightning bolt managed to hit the Leman Russ on the front hull, disabling the heavy bolter and killing the man that operated it.

"FOR CHAOS!" The sorcerer shouted before he crashed to the ground, creating a shockwave of Warp Energy that knocked the surrounding loyalists off of their feet. As the sorcerer rose up, a portal to the Immaterium had opened behind him and daemons of Chaos poured out. A bloodletter pounced onto Cadmus and impaled him with its sword before biting a chunk of his head off. A lot of the guardsmen turned to conduct a 'tactical retreat' once they saw the creatures of the warp pour out of the portal. Some of them were shot by the Commissar, who was screaming obscenities at the daemons.

The Templars were faring much better than the guardsmen. Any daemon that dared to come close to them were either cut to pieces or blasted apart by the heavy bolter that one of them carried. They tried to kill the sorcerer, but the daemons had created a defensive circle around him to ensure that he remains alive so that the portal would remain open. Meanwhile, the Kasrkin were doing their best to lessen the daemons numbers. The death of Cadmus had been especially hard for Safeguard Red, but they kept their emotions in check as they calmly took headshot after headshot at the daemons. Safeguard White's numbers were slowly whittling away as they were fairly close to the portal, so they were receiving a sizable amount of daemons.

The Leman Russ Executioner was also doing a good job of whittling away the daemons. In fact, it was focusing fire at the living barrier that the daemons had erected around the sorcerer. "Jax, the Plasma Cannon's starting to overheat! If we keep firing at this pace, we'll explode!" Darus exclaimed, watching as the heat indicator of the plasma cannon slowly approached the red bar.

"Shut the hell up and keep firing! Do you think that I'm stupid? I know what I'm doing." Jax glared at Darus, before popping out of the command hatch to man the heavy stubber.

"JAX IT'S GOING RED!" Darus screamed at his commander. To his surprise, Jax grinned wildly and pulled out his heirloom sabre.

"DRIVE ME CLOSER! I WISH TO HIT THEM WITH MY SWORD!" Darus looked at him as if he had gone mad, but the driver seemed to understand his intentions as the Leman Russ began to accelerate towards the portal. Then it dawned on Darus, Jax wanted the cannon to overheat so that it would explode and shower the daemons in plasma soup.

'Cunning bastard.' Darus smiled at his commander. "It's been an honour serving with you sir." Jax smiled back down at him, bracing himself for a rather painful death as he can hear the telltale whine of the plasma cannon beginning to explode.

"Likewise with this entire crew." Jax and Darus made the sign of the aquila before Jax turned on the vox speakers. "FOR CADIA!" Darus fired the cannon once last time before the tank exploded in a plume of blue.

The force of the explosion knocked many of the daemons away. Those that were in close proximity were vaporised by the plasma soup. The sorcerer still stood, his visor glaring at them. However, he did not see the Sword Brother of the Black Templars sneak up from behind him.

"DEATH TO YOUR FALSE GODS!" The sorcerer swivelled and barely dodged a power sword from cutting him in half. However, he wasn't fast enough to prevent it from cutting his staff-arm off.

"You impudent insect!" The sorcerer spat out as he crused the Sword Brother with Warp Energy. Then, his other arm was engulfed in searing pain. The force of the dismemberment caused him to face his attacker. It was Jaegus, his melta gun smoking. The Kasrkin's head blew up from the psychic power of the sorcerer.

"Anyone else?!" The sorcerer challenged the assembled loyalists. He heard a noise from below him and lowered his head to investigate. As soon as he had done that, he found himself staring at the barrel of a hellgun.

"Screw off!" Krissa snarled at the sorcerer before firing. The lasbolt penetrated the heretic's helmet and punctured the man's head. However, the angle which she shot from prevented the lasbolt from either blowing up his brain or severing his head. Rather, the lasbolt had caused a bit of his neck to explode, but the sorcerer's spine remained undamaged. Nevertheless, the sudden sensation getting a chunk of his neck blown off caused the sorcerer to stumble backwards. As he backpedaled closer to the portal, Krissa and Acrius ran and tackled him. Although an Astartes weighed a tonne, the sorcerer's lack of balance and proper footing made it slightly easier for the remainder of Safeguard Red to tackle him through the portal.

However, due to the speed they were travelling in, Krissa and her father were also dragged into the closing Warp Portal.

Krissa gasped as she sat upright. Travelling through the warp outside the safety of a ship was a very disturbing experience. She could still feel the hands wander her body and grab her limbs. Patting her body, she was relieved to discover that nothing was missing or had been altered.

'Where am I?' The Kasrkin thought. Her surroundings reminded her of her Cadian home, where bright green trees littered the landscape. Unlike her Cadian home, this forest was vibrant with life. She could hear animals scurrying around and making noises. Usually noise unnerved her, but in this place it seemed natural.

She was brought out her thoughts by a coughing and a weak whisper. "Krissa." She faced the source of the noise.

Her heart stopped for a moment.

"DAD!"

Hello, this is AmICrazy with a new Xover fic. This one features RWBY and WH40K, both are universes that I have recently discovered. Although, I am slowly becoming a huge 40k nerd and RWBY is slowly getting to me.

Anyways leave a review if you can, constructive criticism is welcome. Any flames will be donated to the Salamanders.