Cheat Mode
To skip a stage that is a bit hard, press Ctrl+Q to go to the editor. Choose yes, then make a map with only your units on it. Launch the new map and you will win instantly. Then you can select the next mission in the game.
In the game menu press SS and then type:
DARKPOWER- Maximum power
DARKINV - Invulnerability
DARK20000 - Money Value 20000
This is probably a fault in the game but it is useful if you don't have many credits when you're getting attacked by enemy infantry units. If you are playing with "Imperium" and you are able to build "Shredders", click on decoy and build a decoy shredder. Once built, move the decoy shredder up to an enemy infantry unit then click on the opposite side of the unit. The decoy shredder couldn't be bothered to go around the unit so it'll just move through the unit. There may also may be more faults in decoy units but I haven't tried them all yet.
Another Set of Cheats for This Game
Some Useful Cheats
This is probably a fault in the game but it is useful if you don't have many credits when you're getting attacked by enemy infantry units. If you are playing with "Imperium" and you are able to build "Shredders", click on decoy and build a decoy shredder. Once built, move the decoy shredder up to an enemy infantry unit then click on the opposite side of the unit. The decoy shredder couldn't be bothered to go around the unit so it'll just move through the unit. There may also may be more faults in decoy units but I haven't tried them all yet.
There's another level after the 12th one : Death Blow. To activate it, go to the level selection screen and click on the spiral after you've completed Level 12.
Some Useful Cheats
When playing the Freedom Guard the skirmish tanks always seem so fragile compared to the enemies plasma tanks. Well now you can give your skirmish tanks the same characteristics as the plasma tanks.
There is a file called 'units.txt' in ..\darkreign\dark\deftxt dir.You can edit this file, search for the Freedom Guard tank settings. Look for the 'Setstrength' entry and set your units strength to around 500. There is another field which sets the price and buildtime set this to say '50 1'. This will give you cheap tough tanks for around 50 credits and they will be built really quickly. Note: You can do the same for the spyder bikes and tank hunters.
Also, there is a file called 'build.txt' which you can set the cost and increase the toughness of your buildings in the same way. This works for all missions up to the 6th one. This is because there is a dedicated dir and units.txt file for this scenario which you have to also edit in the same way. Trounce those Imperial swine with weapons to match their own...