- last post: 01.01.0001 12:00 AM PDT
As you all know, in the trailer, Gravemind and Cortana's voices were meshed together. My guess is that Gravemind allied with cortana, to help stop the Covenent. Gravemind says, "I am your shield, I am your sword." THis is what leads me to believe that gravemind has allied with Cortana. My guess is, Gravemind helps MC stop the Covy from activating the arc, and then backstabs MC and uses the humans for food for the flood. Just my guess, you all can comment on this if you like.