If anyone's played Thief, there is a group of people that had came out with a UT mod that is thief a while ago. It came out before thief 3 and it's a multiplayer game. It's a free download but you do have to have UT installed. They  put out a new update for it, ver 1.6 and it's a free download.  

" This guide attempts to give you concise hints & tips on how to play Thievery. These are not hard and fast rules, people are coming up with new strategies all the time, so don't be afraid experiment. Although, if you get chopped to pieces or smashed against a wall by an angry guard's mace, don't blame us.

Thievery currently has the following two gametypes:

Thieves vs Guards - the oft played gametype, best with more players, this pits a team of human thieves against a team of AI and human guards.

Thiefmatch - this gametype isn't team based, it is every thief for himself. The human thieves compete against each other and the AI guards to achieve the objectives. Points are awarded for finding loot, achieving objectives and killing other thieves.
This guide concentrates on the more popular TvG gametype. Thiefmatch is still in early alpha stages and will likely change in the future."

Here's the link in case anyone is interested in it. This might be an idea for the UT tourny's on the weekend as well. Just an idea and to let some of you guys know about this.

http://www.thieveryut.com/