PC Gamer - I crouch atop a rusting industrial rig, scanning among the cargo containers below for signs of movement. A streak my enemy’s green jumpsuit flickers beneath me, and I quickly scope in to line up my shot. But before I can pull the trigger, another shooter takes advantage of my moment of carelessness to blast a few needles into my face. The resulting boils attract a small army of headcrab-like alien fiends to my position and they promptly chew my face off. I can tell it’s going to be a long day in post-apocalyptic San Francisco.