This is pretty much a default installation of the new Threewave CTF running in Portal mode. The players will be able to vote on game type and next map.
Idlers already have private port password.
We're running into the problem of people selecting ctf gametypes on dm maps. For now, that's the only work-around that I know of. I'll keep an eye out for another possible fix that might allow us to re-enable the dm maps. The threewave unification project release is at 4pm est today. There is a server mode called Threewave Portal that will allow the players on the server to vote and switch between several rooms on the server.