Here's my review for halo3:
The final game of the amazing halo trilogy is here, and its bigger, better, and master chiefier. Battle your way through the new and more exciting campaign as master chief or play with a friend in co-op. The only portion of the game has also increased hugely. Play ranked, social, or many of the other option of match choices to try and get your rank and skill points up to dominate the online world. Get trigger happy, unleash your sniping skills, and leave no piece of alien scum behind