I like this info. The only problem that I have with it is that you said the other spartans with the spartan II's were the spartan IV's. I'm pretty sure you meant spartan III's. If not then that's ok. But that's what I thought too. Bringing back some old allies, or even Halsey for that matter would bring the emotional side of the Master Chief to light.
It'd be nice to be Onyx but it was destroyed. And as for the Master Chief's jet pack.... It's actually a thruster pack. The reason for it was because Cortana manipulated his suite while he was in cryostasis. That is why his suite looks different. :/
Well, I think that that's an awesome storyline And while people are talking about the forerunners as well, maybe the Didact is inside the planet, kind of like Lucy in Halo Glasslands, and then he fixes Cortana or something.
Well, first of all, the campain is only going to be a two player game... Unfortunately. And I know that this is a stupid suggestion, but maybe they will have the story go that Cortana can just step out and fire a gun or something. It'd be cool though. :/
That would be so awesome! I was thinking that maybe Halsey would appear in the game too