Ethan Holman (firstname.lastname@example.org) writes:
In the making-of video, they were saying things like "Cortana has been left away from the chief," and "She's in the clutches of the Gravemind." This got me thinking... how could she be talking to Master Chief? She's half a galaxy away.
I thought about who she could be talking to, and the only one that seemed like it could fit was Gravemind. I know, I know, but hear me out. Consider her words:
"I have defied gods and demons"
Presumably this line refers to her actions with regard to Guilty Spark, an "oracle" of the Covenant's "gods" and her actions with regard to the "demon," Master Chief. This hints that she is not talking to the Chief, since it seems unlikely that she would refer to him as the demon.
"I am your shield. I am your sword."
More on this later. Suffice to say, I believe we should be very cautious of Cortana's motives in the third game.
"I know you; Your past, your future"
This one could apply to MC, but it could also apply to Gravemind. When she was in the Installation 04 computer system, one would assume she learned a great deal about the past of the flood, and it's presumed future after a firing of the rings.
"This is the way the world ends"
Which brings me to the most rampant speculation, and ties in with my theories about the "sword/shield" line.
I think Cortana sides with the flood. She is the "shield" and the"sword" of Gravemind because she will use her position in the human military to protect him and his flood forces, and to stage covert attacks against the human network.
A woman on board is bad luck, aye . . .