For all those who own Call of Duty: World at War, I must
request that you try this out...
I want you guys to wait until its one in the morning,
pitch black and you all alone. Then begin to play Nazi
Zombies with the lights off and no volume. Then
commence playing "In the House in a Heartbeat" by John
Murphy on repeat. Just wait until the waves of zombies
get more intense. This happened to me the other day