Came out yesterday, you can dl it with a copy of ODST. I've been playing since thursday and think its sick. Way better than halo 2 and 3, it's kinda like halo 1 and shadowrun. Armor abilities are a lot of fun and the pistol rapes. What's everyones ranking for arena? mines 1654 for yesterday.
post your gt's if you want to play, mines r4ndy moss