Big Boss Tyrant.

Big Boss, real name John, also known as Jack, and formerly known as Naked Snake. A renowned special forces operative and mercenary commander. During the Cold War, Big Boss was an apprentice to The Boss, the so-called Mother of Special Forces. In 1954, Jack was involved in the Bikini Atoll test of the first airborne detonation of a hydrogen bomb. Unlike most of his friends present during the test, Jack did not develop symptoms of leukemia, thyroid cancer, or radiation poisoning, but was rendered sterile. John would take part in Operation Snake Eater, where he had to endure a lot of trials that could easily break a lesser man, including the betrayal of his former friend and mentor. However, he would later learn the truth about the whole thing, and found no feeling of pride or accomplishment in the whole affair. Having learned the true nature behind Operation Snake Eater, he only felt shame.

As he stood over The Boss' anonymous grave at Arlington National Cemetery, Big Boss came to the conclusion that he had lost sight of what he was fighting for, and with it his patriotism for his country. Because of this, as well as his blaming himself for allowing it to happen, he retired. But that didn't last long, and Big Boss ultimately decided to create his own home, called Outer Heaven, which involved ending the abuse and exploitation of soldiers by the world's governments, based on his interpretation of The Boss' will. Time passed, and he was able to create the Outer Heaven, and spent a lot of time going on missions to help lost soldiers, and take down corrupt people who would abuse their power.

This leads us to this night. Big Boss had received information that some kind of corporation were operating in an area without the knowledge or approval of any Governments. They had traced the hidden facility to some mountains and Big Boss decided to head there himself. He arrived in a helicopter a good distance away from the facility to avoid detection. Once he was of, he began heading towards the mission area.

Backing him up on this mission was Kazuhira Miller, the subcommander Militaires Sans Frontières. He was well-read and possessed a vast array of scientific knowledge. Making him the perfect back up for Big Boss whenever he needs information.

"Alright Boss, our intel says this facility belongs to a global Company called Umbrella" Miller said.

"Tell me about them" Boss ordered as he made his way towards the facility, keeping his eye out for any potential ambushes.

"The Umbrella Corporation is a British multinational conglomerate with subsidiaries active in a variety of industries fromed in the early 1970's. They have influence in the production and sale of cosmetics, chemicals and pharmaceuticals, industrial machine production, consumer products, health foods, the transportation industry and tourism. Umbrella's large array of subsidiaries is typical for large-scale corporations. Though we have a strong feeling it was purposely built to cover up illegal activities" Miller answered "We are not sure exactlly what they are doing since Intel is limited. They cover their tracks better than almost anyone we've encountered. But my gut tells me they are not up to anything good".

"I will check it out. Until then, remain on radio silence" Boss said as he continued along the path.

But once he was close enough, went to the side of the path and used his binoculars to get a better look... what he saw made him more suspicious, he could see soldiers wearing uniforms he had never seen before. Why would a production company needs it's own privet army? Normal security guards should be more than enough.

"They are definitely not developing hair products" Boss muttered to himself before sending his findings back to base "Miller, you seeing this?".

"Affirmative. Those uniforms are not familiar to me. But from what I can tell, they are wearing the Umbrella symbol. Meaning they are possibly mercenaries hired by Umbrella" Miller said.

"Kind of overkill to hire a small army just to protect some healthy products" Boss said.

"My thoughts exactly. There is no way they would need that many armed men unless they were hiding something. But the building is shilded. You will need to get inside and find out what they are up to" Miller said.

"Copy that, Big Boss out" Boss said before he began sneaking in to the facility.

Two guards were walking around outside the facility. The one in the back barely had a chance to even breath before strong arms wrapped around his neck in a tight hold, quickly chocking him out and making him drop the gun. The other guard heard the sound and quickly turned around to see his comrade on the ground. He looked around and was about to call out for back up, until he was suddenly grabbed and thrown head first in to a wall at crushing speed, knocking him clean out, and likely leaving him with a nasty head injury.

Boss made sure to hide the bodies before heading deeper inside. Using his scanner, he detected at least 10 guards. Each were on high alert, even though Boss was sure that no one saw him arrive or taking down the other two guards. Meaning these soldiers were trained to be on high alert at all times, ready to react if they see something even slightly out of the ordinary. These men were trained, and trained well. Perhaps they could be useful if they can be captured.

Boss made up his mind and decided to take the non lethal approach.

Sneaking behind the first guard, Boss quickly pulled him into a choke hold, not letting him get as much as a sound out. Once his enemy was subdued, Boss moved on. He saw two guard walking side by side. He readied a trank dart and fired on in to one of the guards neck. Before the other guard could react in time he too was hit in the neck by a dart, and now, both of them were on the floor, sleeping. Three down, 7 more to go. However, one of the guards took out the radio and tried to contact the rest.

"Everyone check in" He waited for a bit as he received several responses... but three of his comrades did not answer "A1, B4, C8, check in... Respond now... We got an intruder, search and destroy".

All guards began spreading out, actively searching for an intruder. These were no amateurs, they must have been hand picked to guard this place. Boss had to move quickly and silently. If they spot him, or if it takes to long for them to find him, they will enter full lock down, and that will be a problem. So he hurried behind another guard and took him down quietly. 4 down, 6 to go. Two guards were walking back to back, ready for wherever the intruder would show up next... one was hit in the neck by a dart, and Boss quickly took down the other one before he could call out to the rest. 8 down, 2 more to go.

The last two guards were starting to feel the pressure, and one of them spoke "To hell with this, it's time for the lock down".

Boss quickly rushed him, slamming him in to a wall hard enough to knock him out. The last guard aimed his weapon, but Boss quickly disarmed him and tried to grab him, but the guard grabbed his arms and head butted him in the face, making Boss stumbled back. He recovered and looked up to see the guard pull out a combat knife. This one was not going down without a fight.

Boss got ready as the guard swings his knife. Boss stopped the attack by blocking the guard's arm instead of trying to block the knife, and he quickly knocked the knife out of his hand. The guard threw a punch, but Boss easily caught it before kneeing him in the gut and flipped him through the air, making him land hard on the ground. The impact was enough to knock the guard out cold. The guard was skilled, but his technique was no CQC.

With the room cleared, Boss hurried deeper inside. He entered an hallway and through a window, he could see a lot of stranger looking creatures... humanoid creatures. Just what was Umbrella really up to? Boss made sure to scan as much as he could, hoping to gather enough intel for a proper investigation. He proceeded deeper inside and once he entered a large room, he saw a man waiting for him.

"I thought I heard some commotion. So you are the famous Big Boss. The man who brought an end to the traitor Boss and saved his beloved Country" The man said.

"Who are you?" Boss demanded.

"I am Oswell E. Spencer. One of the founders of Umbrella Pharmaceuticals, the CEO and President for its entire existence which even before its expansion as the Umbrella Corporation" The man named Spencer answered.

"What are you doing to all those people?" Boss demanded.

"I have discovered the secret to transcend the limit of humanity. I am developing a serum that will make humans stronger, to exceed the very limit of their mortal life" Spencer answered.

"Serum? More like a damn virus. You are inventing new plague" Boss retorted.

Spencer sighed and shook his head "Perfection is not something I can rush. To reach our goal, a lot of trial and error is needed".

"You are using up human lives like they are nothing but lab rats. I don't know what kind of sick experiment you are doing, but I am ending it now" Boss declared.

"I'm afraid I can not allow you to do that. Nor can I let you live. You already know to much" Spencer said "And I have no more time to waste on you. I have buisness to attend to. As you can imagine, it takes a whole lot of money to keep the experiments going".

"Then stop talking and start fighting" Boss challenged.

Spencer laughed "You think I am a fool? I could never hope to defeat a legendary soldier in a fight. Thankfully, I am always prepared" He pressed something making a metal container drop down from the sealing "I admit, it's only a prototype. But testing my products effectiveness against a soldier of your caliber is to good to pass up. Witness the first stage of the Tyrant project".

The container opened up, and Boss got wide eyes as he saw... honestly he wasn't sure what he was looking at. It was a large, pale humanoid monster. It had an exposed spinal column, it's right arm was heavily mutated with a large clawed hand, it's eyes were void of any real life and it's heart was exposed.

The monster roars as it leaps towards Boss, who quickly had to roll aside. Knowing right away that his trank darts would not be useful, and trying to extract it would be to dangerous, it was very clear it needed to be put down. Boss pulled out his Assault Rifle and opened fire at the creature. It roars as pullets tore in to it's body, but somehow managed to remain standing and launched again. Boss avoided being impaled by it's large claw, but it managed to use it's more human hand and grabbed him around the neck. Boss punched and kicked the large brute, but it wouldn't budge, so he pulled out his knife and stabbed it in the eye, making it roar in pain and drop him.

But then alarms blared as the self destruct system was activated. Boss realized this room was to small to fight something that big in, he needed to get outside, and call for extraction chopper. He quickly took of running, with the Tyrant hot on his trail. Boss made it outside and quickly sent the distress call as he tried to hold of the large monster that was coming for him.

"Boss! Boss do you read!?" Miller shouted over the radio.

"I need evac, now! The facility is about to blow, and I am fighting some kind of monster?" Boss responded.

"What?" Miller asked in shock "Chopper is on it's way, just hold it of until then".

Boss growls as he was running out of bullets. Just how much could this damn thing take? The tyrant swings it's massive claw at him, but Boss used his quick reflexes to dodge under it and shot it in the back, making it roar in agony before quickly turning around and back hands Boss, sending him flying several feet before he rolled across the ground. He looked up to see the Tyrant walking towards him with a strong intent to kill.

Thankfully the chopper finally arrived, and one of the men threw down a rocket launcher. Boss quickly caught it, and when the Tyrant leaps towards him again, Boss fired a rocket, blowing the monster up, and finally killing it.

With no time to spare, Boss hurried on board the chopper and it flies away as the facility goes up in flames. Umbrella had managed to cover their tracks yet again. But Boss learned all he needed. Umbrella was a problem, and needed to be dealt with.

With that in mind, they headed back to base. A war could very well be on it's way.

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Alright everyone, this is mostly a test story for me to properly get some experience in writing Metal Gear. This idea has been in my mind for a while now and I just wanted to get it out. Metal Gear X Resident Evil was always a fun crossover idea for me, to see how a world known for it's mechanical weapons would mix with a world of Bio Organic weapons. It just clicked to me.

I don't know if I will make a continuation to this one shot and make a full story out of it. But there is a chance I will. Until then, I have other stories to focus on.

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If you do want a full follow up story to this, then by all means let me know and I will consider it: BUT ONLY AFTER YOU'VE TOLD ME WHAT YOU THINK OF THIS ONE SHOT FIRST.

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Until next time, tell me what you think.