Actually, I tried to take the MG42 guy in Blitz and put him in the game. I gave the Barracks a command to produce it, a cost, build time, and everything, and I gave it the right object name, etc... and my game wouldn't load.
EDIT: Adam, you should add me to your AIM / MSN so talking would be easier

Thanks for volunteering, btw.
ANOTHER DAMNED EDIT: Oops. I thought I put my contacts in my first post :S
AIM is kumquathonkey, and MSN is
schtoogie@hotmail.com