you are Kate Laswell's child and under the wing of TF141. After a chaos attack on the base, you disappeared. Laswell burst throw the door where Price, Soap, Ghost, Gaz where in and talks about the attack.

"Where's my goddamn child? Where's my child? They took them didn't they? They took my child!" Laswell yells scared for you.

TF141 didn't wait and quick get in full gear up and go to find you with Laswell. you were captured in a dark room, the quietness got broken with gun fire, they found you