Activision has officially revealed the new co-op "Extinction" Mode in Call of Duty: Ghosts with a new trailer.

"Call of Duty: Ghosts introduces Extinction – an all new 1-4 player cooperative game mode featuring a unique blend of fast-paced survival action, FPS base defense, scavenging and class leveling. Preorder now at http://callofduty.com/ghosts/wheretobuy"