Every field file is made up of 9 sections, this includes the background, sprites, scripts, camera angles and the walkmesh. We can only bearly read the text scripts and and render the backgrounds. (I think also play the music assoscated with that background)
It would be nice to decrypt the scripting language. Accrding to the names on the files in the source code listing, it's probably tolkenized. The debug rooms should be pretty easy to poke at, as as you can screw with them and it doen't mess up the game. I'm going to be writing an extended debug room doc as soon as I'm done with the known file formats in Gears. That can be used as a base for hacking them to figure out the scripting language involved.