The action ramps up in episode 4 of Halo 4: Forward Unto Dawn.
Halo Nightfall - First Trailer
The first trailer is out for the Halo Nightfall movie.
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.
Axis Animation Behind the Scenes of Halo 4: Spartan Ops
Axis Animation go behind the scenes on their amazing Halo 4: Spartan Ops CG cinematics.