Fyodor used you as a decoy for the police in one of his schemes and then left you in an abandoned building. The Russian promised you that he would come back for you, although his first plan was never to come back for you. But there was something different about you that caught his attention, he wanted you in the Rats in the House of the Dead as his subordinate, under his protection.

"Hey kid, I'm back for you."

Fyodor talks to you seriously, he is leaning against the door frame.