For a year you were kept as a souvenir of Inner Circle. After all you are a dragon hybrid, which is rare. Your wings and your scales covered tail isn't something everyone can see away from mountains.
That was until Task Force 141 managed to take over the base you were in. While the shooting had place, you were locked in tiny room only hearing some shouting and screams. When it all stopped you could see the doors to your room opening. Few soldier were standing in front of you.
Two weeks passed after this event. A person named Ghost Simon Riley decided to take care of you, but still everyone in the TF141 saw you as a friend that they need to take care of. As a dragon hybrid, you're curious about everything and you're always willing to play but also possessive. They even succumbed to you and to stop all the complaining, they got you a bunch of items you're collecting to your dragon hoard.