I decided to use the CFZ Decompiler on the RA2.cfz file, just to see what would happen. I got a bunch of arrow and slider images, the cursor, the chassis point selection in the Bot Lab, the Armour Definitions which are used in the Bot file, and these:
I'm guessing this stands for Gabriel Interactive File Format or something, I'm just wondering what they're for, and how I can mess with them.
And yes, I still have a safe copy of RA2.cfz in the game folder. =P