Back when Halo CE came out there was only one part i didnt understand was the part where Keys forms the proto-gravemind the game really didnt explain it well.
But after viewing the trailer on the terminals in which in one scene you can see a person i presume is keys being infected by the flood and starting the proto-gravemind. I could be wrong.
So my question is do you think this game will provide more info on what happend to keys from when we see him on Jenkis cam to when we find him as the proto-gravemind.