ok cia, the only thing you're wrong on is the AI. Halo's AI is the only thing that puts it above other FPS games. the rest, as my previous post states, is rather pooptastic.
but the enemy AI is sometimes frustratingly brilliant, and rarely cheap. can't tell you how many times I've ducked behind a rock to recharge my shields, only to have a grunt come running around, spot me and shriek, pop off a shot and run for it. that one shot cancels my shield recharge, and someone big usually comes around to kick my ass after being notified of my position. it's rather groovy.
too bad the levels look like they built one room, and cut & Pasted more than Jeff K.