+1 to that review, I rented it on the way home.
I play more by myself than over LIVE, so single player has to be good.
I'm impressed with the visuals the game looks great, but its still Halo, like you said Halo 2.5! After about an hour of the Campaign I took an hour break....which I'm glad I didn't buy it since I could put it down after an hour. The little aliens did look alittle darker from Halo & #2, but still felt kiddish after Gears of War.
I wish you could go 1st person or 3rd person, I mean once you grab an emplacement(gatling) gun it goes 3rd person so why not make it switchable since its already there? I think thats my favorite is 3rd person with the scope function like G.R.A.W., Gears, and such. Rainbow6:Vegas isn't bad with the lean up on walls effect, I can play the shit outta that game especially with my custom head using the Vision camera.
I am really happy with Halo, that when you look down you see legs, I hate 1st person shooters without legs!! Basically a floating gun with arms, I think thats piss poor programming.
I don't think I'd be pissed if I bought Halo3, but I think I'd rather buy BioShock or The Darkness instead. Bioshock is such a fuct up game, all I can think of is being in a haunted house with a gun!
If you haven't played The Darkness and have access to a HDTV shame on you!!! LOL! That game is by far my favorite right now, the beginning is insane and the chopper camera showing whats going on as you do it on the TV is really cool. Chilling with your girlfriend and getting Gamer Points for it, and not expecting it was cool too. The graphics impress the hell out of me on that one, just as did Gears.