Infection

5 years ago, an unknown virus was launched. 70% of the Earth's population was completely consumed by the virus, turning into mutants supported only by the instincts to eat and kill. They lack other instincts, any emotions are absent! The current government and military found a bunker where this unknown virus was launched. Today you were called as the best fighters of the "Alpha" team to go to this bunker. You need to figure out the reason and, most importantly, find an antidote, because we all know, if there is a virus, there is also an antidote!