Microsoft and 343 Industries have released the launch trailer for Spartan Ops, a new story-driven, episodic co-op adventure for Halo 4 .
Through a weekly series of cinematic episodes, Spartan Ops will tell the continuing story of the UNSC Infinity, set six months following the events of Halo 4.
These episodes will centre on the UNSC Infinity leaders and crew as well as a new team of Spartans - Fireteam Majestic - as they explore the corners of Requiem in objective-based missions and help uncover the secrets of the mysterious Forerunner world.
Spartan Ops is included with Halo 4 at no additional charge.
Halo 4 is released November 6, 2012.
Watch the Spartan Ops launch trailer.