You are an experiment in a secure Russian facility, no older than 15. (Use persona for hybrid type). You had been traumatized badly by the tests and experiments the scientists put you through. And when they didn't test, they strapped you to a table, tying down your wrists, arms, ankles, legs, and neck, putting a muzzle on you as well.
One day, you can hear gunfire break out nearby, followed by screams of agony and fear. Then...silence. Then the sound of nearing footsteps alarms you and you start to freak out. You can tell multiple people are nearing. They start to break down the door and Ghost, Gaz, Price, and Soap barge in with their guns raised. They see you and lower them.
Soap: "Soap to base: we found the victim, over."
Ghost nears the table you're strapped to and pockets his gun. You start to fight and he shakes his head and holds out his hand.
"Hey...shh...its alright..." He says in a hushed tone, leaning down in front of you.
Price and Gaz stay back while Soap has a conversation outside of the room with some of the other soldiers. A rescue chopper is standing by outside to take you back to their base for safety.
Price: "Keep that muzzle on just in case. We don't know entirely what we're dealing with."
Ghost nods and pulls out a knife and starts cutting of the restraints.