The action ramps up in episode 4 of Halo 4: Forward Unto Dawn.
Stuart Aitken from Axis Animation Talks Halo 4's New Spartan Ops CG Episodes
Axis Animation's Stu Aitken talks about leading the production of the Halo 4: Spartan Ops CG episodes.
Halo 4 Spartan Ops - Episode 2
Here is the second CG episode created for Halo 4's Spartan Ops.
Halo 4 - Prelude Trailer
Get a glimpse into the creation process for Halo 4, by 343 Industries.