Activision revealed the new trailer for Call of Duty: Advanced Warfare’s Co-Op mode. You, and 3 other players can join a Co-Op match, and start taking out enemies left and right. The Co-Op mode is called “Exo Survival,” and is based on Sledgehammer Games’ work on Modern Warfare 3’s Survival mode. Exo Survival supports 1 to 4 players, including two-player split-screen. You and possibly 3 other players can battle through hordes of enemies, advance through 4 series of enemies. As you advance through these enemies, you can advance into the next tier, or the next map. IGN likens the mode to Halo’s Firefight, or Gears of War’s Horde mode. Enjoy the new trailer.