Here is the second CG episode created for Halo 4's Spartan Ops.
Halo 4: Spartan Ops - Episode 9 Trailer
A trailer is out for the next CG episode of Halo 4: Spartan Ops.
Halo 4: Forward Unto Dawn - Part 4
The action ramps up in episode 4 of Halo 4: Forward Unto Dawn.
Making Halo 4 - Part 1 and 2
Join 343 Industries on a 20 minute behind the scenes featurette on the creation of Halo 4.