Thanks for the questions and we need to hammer some of those details out. Original we needed a new gametype for our Melee Combat? Why? In order to get this system to work you need to use a different controller and pawn that you normally use in UT2k3 games. Out CUT Mutator can change to use our custom classes but its a very very bad idea to change pawns and controllers from a Mutator. Its one of the 7 deadly sins of programming UT2k3

Besides if we and other mutators did that, meaning replace the pawns/controllers (which some do, we do not), then you have confecting issues when you run more than one mutator at a time. And you can really mess things up. So in order to do melee proper, we had to have are own gametypes. Sure we can make a standard ChaosDM game type that is nothing more that plain DM with our controllers/pawn so we can use melee. But that's kind of a cheap hack. We do plan to add our own standard gametypes but only when we have something to make it worth while (like a slomo game winning kill shot, improved bot grapple, ect). And since a few of us are JK2 fans we thought about "Copying" their form of Duel. So for now it it will be something like that. Its a one on one combat with melee weapons. Win stays in, loser goes to end of line and the next person in line tries to beat the current winner. We thought to have a weapons screen so that users can select their melee weapons of choice. And the melees will all have some sort of trade offs (for example a great axe may do great damage, but it slows were as dual daggers are week but much faster).
Now with that said we could very easily morph it into something a bit more. We could have it so that we have a server side option were you can have melee weapons only, or all the standard weapons (like RA) or the chaos weapons (like RA chaos style), a single weapon (can be done by running arena mut) and maybe even the mapper. The mapper could set up the list of items that you can use. Imagine a sniper maps, you have two areas separated but a long pit of lava or something. One play spawns in each area. The mapper adds the sniper and erdw. Then you two duel sniper style

Again nothing but melee is set in stone. The Duel game type can be made very flexible to handle these other types if we want to. We are still thinking what's the best idea and what the people want.