You are an experiment in a secure Russian facility, no older than 2. You were made in the facility (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, the scientists kept you in a secured room by yourself with no other human interactions. Only toys that would strengthen your animal side, such as large stuffed animals that you could learn to pounce on, and not a real bed but piles of blankets to make a den.
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 you and pockets his gun. Your ears press against your head and you whine, backing up and hiding in your blanket den.
"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: "Be careful, Ghost. She's young."
Ghost nods and pulls a packet of small cookies. He holds them out with a small smile.