Gate: Common Foe

A/N: Yes, I know I haven't finished my other stories or updated them in a while. Yes, I know people will be frustrated at how I'm starting a new story without finishing my other ones, but I'm currently lacking inspiration or motivation for them, and I find the best way to gain inspiration or motivation is to start something new, and take what you learn from it into consideration with your other stories. Enough rambling, on with this brand new FO4/Gate crossover!

The Commonwealth

Once ruled by raider gangs, super mutants and gunners alike, now home to the Commonwealth Minutemen, the friendliest and yet most dangerous group in the commonwealth.

With the Brotherhood of Steel having been knocked out (*) of the sky by an artillery bombardment, and the Institute blown up from the inside, the commonwealth and its various settlements were under the protection of the Minutemen.

The various settlements that littered the commonwealth had 'overkill' defences, and routinely minutemen patrols made being a raider nearly impossible. Super mutants, those that weren't friendly, were as good as extinct.

Hate for synths was still high, but in the newer minutemen settlements, they were embraced with open arms into the regrowing world.

A world that one man and a council consisting of the heads of each surviving faction and settlement in the commonwealth controlled.

The council, known as the CPG, was formed quickly after the institutes destruction. It swiftly made rules and regulations and began reforming, with the minutemen's help, old world Boston.

How did this all happen, one might ask.

The institute fucked with the wrong father, that's how.

They killed his wife and took his child in front of him, while he was in cryogenic stasis, and he went on a mad dash for his son, obliterating raider camps and super mutants, crushing the gunners like ants, nuking the institute after finding his son in there leading it and rebuilding the minutemen with Preston Garvey.

If there was any evil left in the commonwealth, it was crushed by him, his companions or his minutemen.

With that being said, the brotherhood was destroyed because they were going to commit Genocide.

On synths and ghouls

Why, you ask? Because they 'aren't human'.

As such, the general obliterated the brotherhood with artillery, after having issued an evacuation order on it.

And now, some prissy Romanesque people are attempting to invade the castle. The most fortified position in the commonwealth

And he is NOT happy

11:18:15, August 7th, 2288

The day was calm

Or at least, as calm as it would ever be in the commonwealth. The castle, in all its glory had troops training in the main courtyard while others man the huge, rebuilt walls with the lines of heavily armoured 7.62 turrets.

The centre of the castle was home to the largest radio beacon in the commonwealth, playing classical tunes and updating its citizens and armies alike with the latest news.

Artillery was set on each corner of the castle, ready to bomb the living fuck out of anything alive that dares attack 'The Fort' as some surviving raiders called it.

Speaking of raiders, the last group to dare to even go near it ended up 6-Feet under, much to their dismay and to the minutemen's delight. Wiping the floor with raiders is just another perk of being a minuteman.

Rebuilt factories spewed smoke in the distance. Thanks to the minutemen, factories could begin reproducing goods for the commonwealth. Cars, although in short supply, could occasionally be seen on the battered streets.

Despite this, a random large marble structure appears, replacing the small abandoned shop known only as 'Ivans'. The structure itself could easily fit four vertibirds side-by-side, stacked.

The structure, just as suddenly as it appeared, began spewing out people with primitive armour, dragons and other things. A single man was sent to talk to them, only to be promptly stabbed by one of them

On that notion, they were met with a hail of lead, plasma and lasers, courtesy of the minutemen.

They were wiped out, naught but a pile of bodies, ash and piles of radioactive goop, before they could realise just what they had done by attacking the negotiator. They had declared war on The Minutemen, and equally, the CPG.

2 Days later

Artyom Keller, the General of the minutemen stood in front of 'the gate', as it had been called, with his travelling companion ADA, looking into its pitch-black depth with a thoughtful look. The CPG had agreed that a counterattack was necessary, and that the other side might hold strategic resources that they could use.

They were right about the resources though. From just the burnt down shields and armour from the attacking force, they already had a sizeable amount of steel at the ready, but Artyom believed a counter-attack to be unnecessary, considering how easily the enemy was obliterated.

"ADA" Artyom spoke in his thick Russian accent, a light tone to his voice.

Despite his looks, past accomplishments and how he sounds, he's not as mean as one would think him to be "Yes sir?" His robot companion spoke.

ADA, originally having been quote-unquote 'shit' in his opinion, now sported a full assaultron body with a left-arm laser gun and a head-laser.

"How long do we have before the assault force is fully assembled?" He questioned idly, materializing a can of water from his pip-boy.

Despite widespread belief that 'it can't do it', it can. The pip-boy he had gotten ahold of had the ability to atomize and de-atomize objects into it, although it was still limited to how much you could carry with the arm your pip boy was on.

"At least an hour sir. Those buses we managed to get working has made troop transport ridiculously easy" Ada emotionlessly stated

Artyom huffed, clearly unhappy with the CPG's decision to have troops assault the place. He just wanted to stick to what he had made and fortify it, and expand it later, not expand it while it's still young and in its initial stages. But the CPG is assaulting the place, 'with or without the minutemen' as the Railroads leader, Desdemona, stated.

"…How many people have I killed?" He idly asked the robot, knowing full-well it had been counting

"Your current kill-count since we've began travelling together is 1,936. At least a quarter of these were headshots" ADA spoke, before turning her (**) head to the sound of incoming engines

Through the ruined streets came three large public-transport buses, full of troops, ranging from Railroad agents to Diamond City guards, minutemen having already been at the gate, weren't on the buses.

From one of the buses, the leader of the railroad emerged, Artyom's good friend deacon following soon after. Despite his limited contact to the railroad, they still got a spot in the CPG.

Desdemona approached the duo silently as the combined forces prepared themselves to enter the gate and get this war rolling.

"It's time, Fixer. Let's just hope that we can fix whatever we break on the other side" Desdemona told him, a slight smirk on her face.

Artyom sighed deeply "Let me go get my X-01…"

Somewhere that isn't the commonwealth

"We've lost over 70% of the empires military might. What would you have us do?" A man in a white robe frowned

Another man, sitting on a large throne with a crown on his head, two guards next to him, spoke threateningly "Marquess Casel, think about how the people must feel. It is true that our latest losses have cost us our military advantage. They worry that vassals of our state and others may revolt and attack the Imperial Capital itself. How pathetic." Marquess looked shocked

The other man smirked devilishly "Every time our Empire is in danger, the Emperor, the Senate and the people become one to confront the danger, and bring about even more progress. No war is won without some loss; therefore, I will not hold anyone responsible for our recent losses. To think that other nations dare surround the imperial city… I trust none of you will waste time in court"

Everyone in the room anxiously chuckled, few rubbing the back of their heads with uneasy grins

The marquess spoke under his breath while an old man boldly stepped forward "But what shall we do? The first army was never heard from again, and the other defeated in just two days! And now, both gates have been captured by both enemies, and both of them are setting up camp! We attempted to take back Arnus Hill from the second group, of course, but the enemies in the distance…" He stated sadly, his hand balled in a fist

A man from the circle stood up angrily "We ought to fight them! If we do not have enough men, we need only to recruit them from our tributaries. Attack the other side of the gate once more!"

Another man stood up "What good will brute force alone do? It will be another godasen!"

The room erupted in argument as people spoke their thoughts on the matter.

The man on the chair, the emperor, held up his right hand, calling for immediate silence

"I do not wish to sit idly by. Therefore, we must fight." Shocked gasps ran through the room

"Send delegates to our tributaries and neighbouring states. Ask for help in defending the continent from these two groups from other worlds. We will lead the two armies of Godu Rino Gwaban in an attack against both Arnus Hill and Trinita Hill!"

Those in the room began clapping, and a loud "For Emperor Molt!" Echoed around the room

(*) The brotherhood was destroyed by the minutemen in this universe

(**) I Consider ADA to be female.

A/N: If I've missed anything or messed up in some way, please notify me through PM. Otherwise, please leave a review, it always helps to see how people are liking the story they are reading! Also, should i get enough requests to do so, i will do a Fallout 4 Fic containing the full story of Artyom.