Crossfire: Survival Zombie Shooter. FPS Strike

Crossfire: Survival Shooter is a hardcore and realistic online first-person action RPG with MMO features set in the fictional region located on the frontier between Russia and Europe, the city of Solensk was plunged into anarchy thanks to the Virus Wars. What was once a bustling city, is now roamed by rivalling zombie gangs, former private military forces, and black ops units. Between them all, there's you, your stash, and the escape back to the free world from the depths of Solensk.