This is a first-person shooter in which players compete to obtain control of military bases overrun by zombies. Players use pistols, machine guns, and crossbows to shoot and kill rival team members and roaming zombie hordes. Battles are frenetic, accompanied by realistic gunfire and large explosions; enemies emit splashes of blood when hit. Some headshots result in zombies getting decapitated. The words “f**k� and “sh*t� are heard in the dialogue.