After seeing how good DiD2 looks in DarkPlaces (see the gallery), we've decided to make DiD2 a standalone game, using the DarkPlaces engine. This will mean a slightly more powerful computer will be needed to play the game, but it also means we can make the game as good as possible, and get it to a wider audience. The extra features provided by DP mean that the graphics are significantly better, as well as allowing some coding options not found in standard quake. We'll release the maps with 2 or 3 options for texture quality, so that people with lower and higher end machines can both enjoy the game to to maximum!
As soon as we've finished replacing all the models and sounds from Quake, as well as the ones we borrowed without permission, I'll be moving this page to the Standalone section, and almost certainly releasing a beta too!
We've got some sweet new AI coded, such as troops running for cover (pretty intelligently) when injured. The troops then step out for a few seconds to fire a salvo before hiding once again. This makes urban maps like the one in the latest gallery shots a hoot, with troops hiding behind walls and being taken out by grenades etc.
StandAlone mean a lot more work, but much more people can play the thing. You may also try to attract more people. Has your mod will run on DP only, and DP support md3, you can use 3ds models convert to md3, so you can ask help from modelers.
Anyway I think its better to avoid slide to a giganteous proyect that will never finish. Its better to start something small, finish, then restart to something much bigger.
If you ever need help, try asking here, on i3d, on quakesrc, or on quakeworld.nu.