Unicorn Empire

Thank you, I found it, now I'll know. If you can't find a solution to the problem, could you send me a save file from that point? I'd like to finish the game!

I've sent it. The victory is announced in about 10 seconds.
The error is not in the campaign. The NCF mod is not installed (although this was mentioned in the first message), so you were essentially fighting against nothing all this time. Didn't you see the warning at the beginning of the first mission?