The campaign_rules_mod11733636732supcomsource.zip file you have requested: Modifications / Miscellaneous / Campaign Rules - 212.36kb is not available. Perhaps try browsing all files for the game Supreme Commander and upload any files you want to share or are missing. This is the only information we could locate:
This is a simple file showing the directory structure needed for a mod to modify the single player campaign. Includes a FARK, flying high speed builder that gives massive resources - VERY cheating. I also includes the ResourceRich mod put out by GPG. This looks to be a 'Big Cheat' giving you fast builders and such.