[WindowsCentral.com]

As conflicts throughout the galaxy continue, a new force emerges — one that is lead by a friend that was thought to be dead, though she no longer is who she once was.
In the last article, we went over the events of Halo 4: Spartan Ops and its follow-up comic, Halo: Escalation, in which the UNSC and Jul 'Mdama's Covenant raced to obtain a treasure trove of Forerunner technology that the Janus Key led them to. Ultimately, the tech would slip through the fingers of both factions, and Dr. Catherine Halsey would remain in 'Mdama's hands.

Full story from the WindowsCentral blog...