MegaTF United - a mod which combines elements of all the greatest tf mods to mega and adds new features and bugfixes as well
TF United Coop - Team fortress cooperative play - introduces tougher, more challenging monsters using the team fortress gameplay style.

..and his others:
ETF max - Mod based on Enemy Territory Fortress which uncaps bunnyhopping speeds and makes ETF feel more like QuakeWorld TF.
Quake 4 Fortress eXtreme - My continuation of where the Q4F team left off. It's currently in development (especially for 1.4.2)
Codename RoX: A stand-alone game based on the Darkplaces engine which combines elements of FPS and RTS games with base-building and unit construction etc.

- A team of DEDICATED players (I'm aiming at at least 10) who can attend scheduled nightly matches two to four times a week
- Confident beta testers who won't just run around aimlessly but explore the game and class structure and balance and report on areas where elements need to be tweaked or changed
- Multi-platform users - linux, etc.
- Preferably people with quake 4