A set of Halo 4 Series 2 action figures were revealed recently that includes new lines expanding to regular human and Covenant characters, as well as a railgun wielding Master Chief! The Storm Jackal is also notable as it represents a new denotation for the alien race.
If you were to read the novel “Halo: Glasslands” from Karen Traviss, you will learn of how the Covenant has begun to splinter following the events in Halo 3. The follow-up, Halo: The Thursday War coming out in October this year is expected to explore this rift even deeper which will explain why Master Chief is fighting Elites, Jackals and Grunts in Halo 4.
Halo 4 is due for release worldwide on November 6th 2012.