Activision announced in a new trailer a new four-player co-op mode for the upcoming Call of Duty game Ghosts. The mode is called Extinction.
The mode has a team of one to four players fighting against aliens hatching from pods. You'll be defending bases and scavenging resources as well. According to the trailer description YouTube, you'll also be split into different classes that will all level up as you play. It is unknown at this time if this will be connected to your ranks in the other mutliplayer modes.
Call of Duty: Ghosts will come to the PlayStation 3 and other current gen platforms on November 5th. It will launch alongside the PlayStation 4 on November 15th in North America and November 29th in Europe.