(SPOILER)The Halo series has lost a bit of magic in this installment. The way they tried to tie things together was rash and seems wrong compared to the other series. Cortana seems to have had little if at all any choice in master chief, while she was supposed to pick him from about 100 spartans due to the fact he was both the luckiest and the best.

Then in previous canon the Pillar of Autumn was late to the fight at reach because it was on its way out, and had to turn back (and therefore survived the initial onslaught). Here it was.. for some reason there? I severely doubt one ship could muscle its way through an entire Covenant armada, Cortana or no Cortana.

Not to mention it fails to explain why MC would even be on the Pillar of Autumn. He was the leader of all of them, why wasn't he out there, fighting?

Overall I didn't care for the story, the music or the people. This would be an awful game if the gameplay wasn't this awesome (as long as you kill or leave behind any friendly AI's).