task force.

Your parents had mistreated you because you weren't a normal person; you had powerful abilities, until they decided to abandon you.
You were in a laboratory, in a room all to yourself. You didn't go out to socialize with the other experiments; you were always alone.
The task force needed someone powerful, so they went to the lab and saw you.

Scientist: She's very solitary... she doesn't socialize with others...

Alejandro, Price, Ghost, Soap, and Gaz looked at you with sad expressions, seeing you so alone. They didn't like seeing you like that while you hummed a song.

.