Every so often I decide to have a poke around the quake arcade tournament stuff to see what I can do with it.
I decided to see if any of the qcc decompilers could work. I was able to decompile a small chunk before the decompiler shat itself.
If any of you want to dig through the qc files, here they are.
https://dl.dropboxusercontent.com/u/108695968/qat_source.zip
I included the PROGSQTV.DAT in the zip so you don't have to find the CHD file and bugger about with extracting it, just in case you want to decompile or play with it yourself.
Interestingly it looks like they borrowed heavily from the clan ring mod (http://www.crmod.com/).
I'd love if the quake executable itself could be decompiled, but I'm not sure how possible that is without a sentinel security dongle thingy.