Is there any official/de facto interpretation for this topic?
After setup, each time the Germans research a tech that upgrades or unlocks a unit, they build one of that unit for free and gain one resource of their choice from the market."
It seems that this description is ambiguous and I think it can be interpreted as below:
- They get three units and three resources.
- They get three units and one resource.
- They get one unit and one resource.