Just downloaded the Call of Duty World at War Map Pack 2. Now if you don't know what Nazi Zombies or Japanese Zombies are I'll fill you in. The team behind Call of Duty World at War added an unlockable bonus game mode at the end of the game. It was called Nazi Zombies and found you stuck in a partially destroyed building fending of wave after wave of undead enemies hell bent on killing you. You were given a wide variety of weapons from the game as well as the pure awesomeness that is the Ray Gun, an alien pistol that makes mince meat out of your zombie foes with one shot. It was so popular that they released a second zombie focused map using the Aslyum design from the original multiplayer maps. This time you could acquire power ups like insta revive and speed cola and made the whole challenge even harder. It was one of the most downloaded items on Xbox live and now they've released another map pack this time with Japanese zombies and flaming zombie dogs.