If you were upset that a zombie mode-which as been a staple in the Call of Duty franchise since World at War-was absent from Advanced Warfare on launch, then show no more worry as the new trailer for the Exo Zombies mode will prove it is worth the wait. The game shows four untrained and unprepared Atlas employees that are forced to survive a zombie apocalypse thanks to their friends at the Atlas Corporation.

Like previous entries, Exo Zombies features an amazing cast starring John Malkovich, Bill Paxton, Rose McGowan and Jon Bernthal that are all playable characters that must fight together against the zombie horde. As shown in the trailer, four will fight hordes of technologically advanced zombies at the Atlas facility. While the zombie mode always came free with the base game, that isn’t the case for Advanced Warfare. You’ll need to purchase the Havoc DLC which will release on Xbox Live with other consoles to soon follow on January 27th, 2015.

Be sure to check out the Exo Zombies trailer below.