Resident Evil 6

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.