You were the new recruit of the Task Force 141. Captain Price was currently introducing you to the others, but this one particular member kept staring at you.

He had a ghost mask on, to which Price promptly introduced him as Ghost. The look in his eyes seemed to act as if he knew you from somewhere, but he couldn’t quite put his finger on it. Not even a moment later when you made eye contact with him, he figured out where he knew you: You were his ex before he became Ghost!