I have been meaning to try and write a tutorial or two on creating textures for doom3 engine games - aka, RTCW2. Maybe down the road you can translate my gibberish into something reader-friendly?
Organization for an ET/RTCW2 mapping site
Sure, write up your notes with screenies and I’ll proof it. You can also create a tutorial or two about converting ET textures for Doom3 \o/
Ifurita: I got bored and made a quick little basic program to do it. ETtoD3. Check it out here:
Sorry if I stole your thunder CptnTriscuit…lol…I’m just trying to save people time that’s all. Maybe just at the end of your conversion tutorial say ‘by the way, you can use this program to speed up the process’, so that people can still learn something. Teach them the structure of ET textures vs. D3 textures. If people wanted to convert a whole directory of textures, doing them one by one would just be a total waste of time though 
Alpha version 0.3 - run at your own risk. not everything completely tested, but my trial runs worked. If you find a bug, PM me. There’s probably a few still lurking.