Many people have been requesting that I update the classbased mod that I wrote for nexuiz so that it would work with the current version in trunk. I've gotten the code into a git repository, and so you can see all the changes I've made.
Here's a link to the repository: http://github.com/psychcf/nexuiz-classbased/tree/master
You can use the download link on that page to get the code if you don't want to hassle with git.
Since I was using a checked-out copy of nexuiz from SVN originally, I wasn't able to have individual commits. The changes I've made up to this point can be seen in this commit.
I still need to write some custom weapons for each class, such as a healing gun for the medic, landmines for the engineer, etc. The mod itself is a mutator, and can be used with any gametype.
If you want to help out, you can clone the repository on github and send me a pull request, or send me a patch with the changes (the first method is preferred).
The build.sh script doesn't do anything out of the ordinary, I just put it there for convenience. You can build the source however you like.
Let me know what you guys think.
EDIT: you can now download a pk3 of the mod here:
http://github.com/psychcf/nexuiz-classbased/downloads