W3bDevil, that's what I was saying...

You can produce only one kind of units that way...
Hey, I've got an idea! What if you look into the tunnel network's code?.. I mean it creates two RPG-troopers when it is constructed, right?.. What if your barrack creates the infantry#1, that creates infantry#2, that creates infantry#3 etc?.. That might just be what you needed..
