just straight amazing.
Campaign still feels awesome and halo-y, but much more moving and includes some of the best cutscenes ive seen in gaming. ending brought tears to my eyes.
the general feel of the weapons is different but if you give it time it will feel just like halo again unless you go back and play the others.
if you'e a fan of the series, get it. if you are new, get it and then go play the other games' campaigns before this one, because it gets confusing even to people who have played all. amazing overall.