I had UT opening day and I thought the game was boring and the games went by very fast. I also had Halo2 opening day. And I had xbox live, I play Halo now every single day of the week. I don't think there is a better game than it. Something new happens every time and you can stage operations with the headset. Even if you didn't have xbox live the campeign is fully loaded too even with some weapons you don't get in Multiplayer. Overall halo is the better game, but some people might have there better fun in UT or some people hate them both. but there's a good opinion on the greatest game ever. XD