Campaign: Wow, what a let down. I had really hoped to see some large scale, chaotic battles with gritty ODSTs (as shown in the live-action commercial), instead, I received a repetitive campaign of wandering solo through a deserted city, with little opposition from the Convenant.

Story: The storyline is weak, and virtually non-existent for most of the game. You pick up 'audio logs' as you wander around. These are a joke. They have nothing to do with the campaign or with ODSTs. They are viewed as audio with a cartoonish slideshow of pictures. There are about 30 to collect and I stopped picking them up after the first 5.

Challenge: I played through this on legendary co-op and BREEZED through it. There were no additional enemies or challenges when playing co-op. Giving enemies a nonstop beat down is fun, but not being challenged makes for a boring play-through.

Acting: The voice acting was well done and entertaining, however I would have liked to see hardcore, gritty, war-beaten actors, instead of slightly overweight, middle aged, B-movie scifi actors.

Weapons: I know that you are playing as an ODST, and not Master Chief, but to take AWAY features such as dual-wielding is depressing. This game offers nothing new in the way of firepower. Worst of all they REMOVED the energy blade, arguably the most fun weapon in the Halo series.

Firefight: FINALLY, something fun! This is essentially Horde mode from GoW2. I found this mode to be challenging, fun, and diverse in play. You can hang back and defend an area, or get deep into enemy lines and take them out from behind. Playing with friends is a must.

Mutliplayer: This is Halo3's multiplayer. Three new maps are not enough incentive to revive my interest.

OVERALL: I am disappointed with my purchase of this game and have already returned it while the trade-in price is good. Firefight should have been released as a downloadable add-on to Halo 3 (think Battlefield 1943).

Yeah, it's Halo, and there are some new adventures, but honestly I found myself lost the entire game, and wasn't that into the storyline. Beat it in a day and sent it back. It is a renter, that's for sure.