Check out the Trailer for Halo 4’s Second Episode of Spartan Ops
Spartan Ops, replacing Firefight from previous Halo games, is an episodic co-op campaign available only to those who bought the game. Each episode comes with five accompanying missions. The trailer for this episode is about a “mysterious artifact” that takes control of UNSC controls, and it’s up to the Spartans to find out how to free the ship.
Check out the trailer below: