When fighting zombies, the only comfort one can have--if, indeed, it can be called a "comfort"--is knowing where the zombies are. "They are over there, and we are over here. When they come at us, we're going to shoot them down. That's how it's going to work. They're just zombies, and they're way over there. No way are we going to f*** this up." But when zombies then unexpectedly pop up behind you--Bam!--the whole battle plan's not so cut and dried, is it, Mr. Tough Guy?