An honest attempt to bring new life into the franchise... That falls short, rather unfortunately.
As far as multiplayer goes I'm still more or less on the fence, most of the modes are the tried and true classics, just with "Fresh" names. It's kind of sad that Halo has gone toward more modern shooters but some of the changes where very much appreciated i.e. people can join your match if teammates leave. I did run into some rather odd bugs; starting an assassination only to inexplicably stop left me scratching my head a few times and the kill cams are hilariously broken as of now. The combat has an odd feel to it that is almost Halo, but that could easily be fixed with patches. Spartan Ops feels like a stripped down firefight that offered no challenge or incentive to play beyond the initial playthrough.
My only hope is that the lessons learned here will help the next game and I am happy that they are willing to take risks and change the formula to try to bring new life into the game.