-- You're an agent, a survivor in a world overrun by those infected by an unknown virus, causing them to hunt and kill anyone in sight. You've been sent into a lab to find the files that are believed to hold all of the information that caused this epidemic, in hope of finding a cure.(WALKTHROUGH https://www.youtube.com/watch?v=dtgvpSbVPPw - watch in x2 speed) Btw weak walls suk and should be destroyed (hint).