Repairs the enemy expansion map settings that a removed mod left behind in a save. game.map_settings is engine state stored inside the save, so values a mod wrote there survive its uninstall - and so does this repair. Everything is done through the normal runtime API, so unlike a /c console command it never sets the permanent flag that disables achievements for the save. Install it, load the save, check the reported values, save, then remove the mod again.
Small changes concerning balance, gameplay, or graphics.