Netherlands
All examples are from my usf base mod, so you need to use the US stamper instead of the Brit.
Then you want to edit all 4 usf base buildings like this:
You need to add a 'spawn_entity' action with your own Wehrmacht structure before the delay. And change the required race to Wehrmacht. That way the US won't change and the Wehrmacht starts with its own structures.
You need to think about the layout though, because the Wehrmacht structures are bigger and there are 5 of them. I have no idea how you want to fit them all in the US circle. But you can toy around with the x and z coordinates in spawn_entity to move them a little.
)
Relic Entertainment
Ocean Man 
SoE-Sturmpanther- 
Dirt on me 
