This is a new glitch for "Nacht Der Untoten" it works just fine if You guys think it's good i'll post a tutorial. heres a video i put up me and my friend were doing it. And as you can see the zombies just run in to the boxes noting else. but be warned to much zombies piling up one to two of them brake off and chase you. But it's only one to two and you have to cover the windows and the fire tunnel but with 3 people down there it should be fine made it to round 60 with this < Check it out and tell me what you think..