Fantastic game. Did the campaign on normal in about 6 hours. Did it on Legendary with the housemates yesterday. Took us a bit longer but made it through. Started Legendary on Solo...f**king ridiculous.
Over-all, really f**king loved it. Absolutely beautiful game to look at that delves deeper into the Halo universe while expanding it with the past and into the future. I have the same thoughts on the general objectives, Vakarian - too much button pushing but otherwise, it was fun.
Very disappointed the Covvie's relationship wasn't delved into that much but, meh.
Oh and the ending...
Spoiler
He fell into Slipspace. He'll be back. Folk can survive in slipspace, we've seen it. Plus he has that super awesome Forerunner armor on.