411 REFERENCE · Wikibooks
Lua in SpringRTS/Mod Structure
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
The mod file is just a plain zipped file in the .7z format.
In this zip file there are actually very few folders and files that are absolutely required for a mod. Most files and folders are optional and just add elements to the game. For more information about the required folders/files you can read further on http://springrts.com/wiki/Mod_specification.