(adsbygoogle = window.adsbygoogle || []).push({}); ok, whoever is on the quick revive side to start, they open all of their doors and go to the power room, the other people come through the opened door seperating them fro the beginning. All four people just have to camp in the power room and just aim at the ONE SMALL DOOR, which is at the same time, aiming at the stairs!!

agreed there isnt enough space between you and the zombies for that to work well