Overall an interesting story concept. Making Cortana the villain. Now playing as Locke. 343 went in a very different direction.

I think the game overall had a good plot, but I found it odd you don't play as Chief but 2-3 times. I was expecting to switch off which team I was in control of every other mission or so... No of the 15 missions you play as Locke 12 times and Chief 3.