It's using Killzone Kid's screenshot dll because the screenshot command creates really washed out images on my PC. I also edited the script to turn shadows off as there were some strange visual bugs that I could only replicate in the render world.
The mission just has default add actions for exporting all non-vanilla CfgWeapons and CfgVehicles, but you can change it as the scripts should be “drop-in” replacements for the corresponding BIS functions. So all of the information here about parameters should be accurate
Note: this piece of information was grabbed from kju in arma discord chat.