Kill everything that moves and capture your opponents flag. Hop onto a sub-way train and go for a ride with guns a blazing. This awesome action game has an open world and allows players to delve into an underground subway system and try to rack up the kills. The underground is slightly different as it has a post-apocalyptic design.
Use Use WASD = Move. Shift = Toggle Sprint. Mouse = Aim/Shoot. Right-Click = Scope. Mouse Wheel / Numpad = Cycle Weapons. G = Throw Grenade. P = Toggle.