The only problem I have with MLG Halo 2 matches are the button glitches, there is nothing skillful about crouch melees and your character flying 10 feet towards you and then following it with a headshot immediately due to a flaw in the games mechanics.
I also highly enjoy games without radar, makes you really stay on your toes and cuts down on camping certain spots since you can tell when someone is coming towards you at all times with radar. Without radar, some friends can keep them occupied while someone sneaks behind them.
I also found out today that my GS is doing a tourney the night of launch, so basically whatever the prize is, it's coming home with me.

Small towns ftw!