A new trailer from Call of Duty: Advanced Warfare shows off more of the Descent exo-zombie chapter in the Reckoning expansion that's coming to Xbox LIVE tomorrow and other platforms (presumably) next month. Here's word: "Don't miss the thrilling conclusion to the Exo Zombies saga, as Descent takes our four heroes to a deep water Atlas base in order to stop the source of the infection once and for all. Battle new enemies with enhanced capabilities, wield the powerful Trident Reflected Energy Weapon, and unravel the terrible secret that Atlas has been hiding. Bill Paxton, Rose McGowan, Jon Bernthal, Bruce Campbell, and John Malkovich star in this action-packed Exo Zombies finale."