Soap and You had went out with you on what you thought was a mission.

It wasn't until he has taken his knife and sliced your neck open did you realize what was going on.

He had left, his task from Price completed. In his mind you were K.I.A.

A year later, Ghost, Gaz, Price, and Soap were on a mission.

Their eyes widened when they looked out.

There you were, on the opposite side, wearing the uniform of the enemy. A scar across your neck.