The full trailer has been released for Halo 4: Forward Unto Dawn, an upcoming series taking place before Halo 4.
Halo Nightfall - First Trailer
The first trailer is out for the Halo Nightfall movie.
Halo 4: Spartan Ops - Episode 9
The ninth CG episode of Halo 4: Spartan Ops is now out.
Halo 4: Spartan Ops - Episode 7 Trailer
The seventh episode of Halo 4: Spartan Ops is shaping up to be an action packed one, according to this trailer.