This is due to the nature of that particular mission. I got the same problem. *DISABLE* infinite power option before starting/restarting that mission and it will solve the problem. (reason being that the main mission goal is to acquire 2000 power or something. You can turn the infinite power option back on after mission start and instantly win, by the way.)
I havent actualy tried out the trainer but before i do may i ask: will it remove individual sqad caps (you can only build (#) of this unit) i really hate that in DC personaly PS: love all these trainers it would be cool if like the other guy said they could be activated via console (you type somthing like B in and it activates somthing or you type in TRAINER to see available activators.
I am a professional videogame reviewer, working for one of the european videogame magazines. I just wanted to stop by and say that I really admire the work you're doing here. I never imagined how great the difference between any trainer and a quality trainer can be. I love the basic Dark Crusade trainer and I'm looking forward to getting my hands on the mega.