Welcome to the wonderful, frustrating world of WASTED modding. Following in the grand tradition of video games with mod support, the documentation of WASTED's modding support is (ironically) not very well documented, and you'll probably be able to figure out how it works by checking out and messing with the example scripts, more so than going through this documentation. You can find those in Mods/Ignored.

Still, you'll find some bits and pieces of information here that might be useful to you. Otherwise, feel free to post in the game forums, and I'll lend a hand when I can.

Good luck, and happy modding!