Warehouse cheat (Survival mode)
This cheat is for the Warehouse level in survival mode.To do this start the game and get the hunting rifle,you'll need this to take out smokers.Now there's shelf where you can climb on top on,Its to your left if your face toward the door,but it's the short shelf next on the left next to the vent.Climb on top of it and go to the back corner of the shelf and crouch,if you do it correctly you will be inside the shelf and all the zombies will ignore you except the smokers.If you have a friend have him/her start it and have him/her crouch in the same spot where you are and wait as long as you want.
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