I highly recommend this game to anyone, even those who were burnt out on the series such as myself.
I did purchase this game since it was stated the even those "burnt out on the Halo series" would enjoy it, I wanted to see if it was true.
I am so glad I purchased this game. It has a very satisfying Campaign with characters you care about, that has immediate replayability thanks to having access to the "skulls" right off the bat, in addition to the obligatory difficulty settings and choice to play solo or co-op. The fact that your credit system in the campaign is integrated with your multiplayer is just icing on the solo-cake.
The mulitplayer, of which I have only seen the shadow of the tip of the iceberg is deep. Between different deathmatces ie Slayer, Infestation, Juggernaut, the Firefight mode and now Invasion mode among many other team modes and yet to be created user-modified content, this is a game with near-endless replay value and a fun factor that is hard to top.
I highly recommend this game to anyone, even those who were burnt out on the series such as myself.