Bioterrorism ... Terrorists infect the US President with a vaccine that makes him an aggressive zombie. And one of the heroes of the game will have to kill him. Behind the terrorists, there is a mafia organisation that wants to hide the truth about the impossibility to control the biological weapons developed by it, which turns people into zombies. Bioterrorists opposed by a detachment of special forces - it serves two other characters. The action of the game periodically turns from a personal vendetta into a global catastrophe and back. One President-zombie is replaced by whole cities of infected. Zombies and mutants, bioterrorists, special forces and mercenaries - they all act constantly, fight and survive in open territories and secret bases. In total, you can play for seven characters, including a woman - the head of terrorists. Four story campaigns, after going through one line of the plot, you can choose another lens and see the events from a different perspective. There are many enemies, but ammunition drops out of them after death. The more dangerous is the enemy, the more ammo is dropped. In hand-to-hand combat, various combo attacks help. The complete passage of the game is described as approximately 25 hours of pure action.