I am not the biggest Halo fan, but I love playing the games the campaigns with friends.
The campaign KICKS ASS. Firefight, omg need sleep, is awesome. Def fun to just dick around and cause massive carnage.
To echo Hy Bound, the friggin soundtrack is breathtaking.
This game beats the shite outta halo 3 with a bad mofo stick.
P.S. if i am online on the 360 and you invite me and a I don't respond it's bc my roomate is playing under my online account. Just in case people are looking to play a "serious" match...haha. I am always willing to play. BUT, I am pretty decent at offense, not stellar. Although I am really good at staying alive.