Gemgen alternative idea.

[Calahan]

I'm guessing no is the answer, but can commander units be modded so that they are forced into doing a specific order each turn? If so, then maybe gem generating units could be forced to patrol each turn, thereby making them very vunerable, and always a target for attack by simply attacking the province they are in.

Just a thought on this topic, although I personally have my doubts about the idea itself. Mainly due to negative income being a very managable thing, especially in the late game.