halo banhammer in full effect
the most recent autoupdate for halo 2 [required to continue playing on xbox live] was promised to rid its matchmaking games of modders, "cheats, rank-whores, and miscreants". well the banhammer is swinging hard:

In the past twenty-four hours, approximately 2,550 people have been permanently banned from matchmaking for using hacked or modified content online.

and for those who think the autoupdate isn't working fast enough, or are interested in how this is all working, one bungie forum member involved with the update process had this to say:

"It takes time to ban someone. So, gradually, every modder will get banned - it just isn't instanteous. Eventually, the only modders will be people who create a new account - and then they only get one or two games before they get banned as well...The update IS working. I'm sitting here watching the people get banned (automatically). It simply takes time. I've watched guys come on with one account, see it get banned, then come online with similarly named account, and get banned again, each automatically, each after only 1 modded game played."

see the news update on the bungie's site. or go here for the thread about it. Matt @ 2:03 PM