Tutorial-- First open the first three doors up the stairs, Then have one person sit in between the blood spots by the furnace, Then have the other stand at the corner above them, The zombies will pile up on the stairs.
didnt see this posted, if it was just remove this thread -thanks
I think the confusion glitches make the rounds take much to long, we were in the cave below the quick revive doing the confusion glitch last night and it sure seemed like the rounds took 3-4 times as long to end!!!