Supreme Commander Cheats for PC

Enable Cheats in Campaign Mode
Open the Game.prefs file with Notepad. This file is located in C:\Documents and Settings\{username}\Local Settings\Application Data\Gas Powered Games\SupremeCommander.

Add the following lines to the beginning of the file (above the 'profile = {'):

debug = {
enable_debug_facilities = true
}

You can now use any of the above cheat codes in Campaign Mode. Note: If it doesn't work, you may have to delete your old savegame and character, the savegames folder and your original game.prefs file (always make a backup!). Then start the game, create a new profile, DO NOT PLAY, exit the game and follow the same instructions. You may need to start a new mission/level for cheats to work.

Note: The enemy will also have access to any cheats that you enable and will not hesitate to use them against you.