It looks like Keptin's dead... I'M TAKING OVER! FWHAHAHAHAHASDAFHKL (actually I just had the urge to play this mod, so I thought I'd quickly fix things up for myself and others)
Anyhow, I spent an hour or three this morning ironing out the major version compatibility issues. Right now, I've fixed it to the point where the IFed guys are playable in missions and the simulator. I'll see if I can put together a fully patched version for the rest of you soon (hopefully with campaign and exerelin integration). It will be uploaded to this thread if I manage to finish cleaning things up.
In the meantime, here's a video of me using the federation for target practice and/or bugfixing:
http://youtu.be/TBmXT4GUREg. If you're curious which ships I'm using, you can find them
here (shameless plug for my mod, I know...
).