Great way to finish the fight.
Gameplay: Dont try and fix what isn't broken- that's what Bungie did, with some minor tweaks, and some new weapons, the Halo franchice stuck to it's roots, and gives us the ultimate experience on the 360.
Single Player: Although the voice acting could be better, this game ended in an Epic trilogy-giving you everything you would want, with a ending that leave's you somewhat satisfied, but still wanting more(Halo 4 mabey?)
Multiplayer: Online is where this game shines the greatest. The fact that the game records everymatch for you, and you can save clips, makes this game like no other- which is why Halo is as big as it is- because of it's innovation.
Graphics: This game looks stunning on an HD TV, but if you got a regular TV, it might look like a nice tweak up from Halo 2, but you the difference is without a doubt there.
I'm sure millions already have this game, but if your the few that don't, give it a try, it's worth it.