theres better ones, youlll get overrun by zombies if you have 1 person guarding 1 thing, my good tactic, got to 22 with, is spawn where the gewher is, open all the way to the power room, turn power on, get everything you need, open the door in the POWER room to the kitchen, get bouncy betties, place a bouncy betty at the kitchen window and all 4 people guard the door and every once in a while glance at the window
we all had rayguns