The fourth CG episode is out for Halo 4: Spartan Ops.
Halo 2: Anniversary - Remaking the Legend
See how 343 Industries have remade the legend of Halo 2 in this documentary video.
Halo: The Master Chief Collection - CG Trailer
Master Chief nukes some Covenant in this CG trailer for Halo: The Master Chief Collection.
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.