rokugan/l5r mod

[Blaze61980]

Im working on a rokugan/l5r mod right now. Ive already got all the major clans with unique traits and special units. I want to add the shadowlands into the mod but i cant figure out how to get it right. Im thinking either a new civ preferably but im not oppsed to using barbarians instead if i need to. The problem im having is that i want to use nuclear fallout to simulate the shadowlands taint. If i make a unit to spread it though how does the shadowlands civ build improvements without clearing it off (defeating the point). Any help on this part would be great.

 

[Me,myself,and,I]

I'm not good at modding, but could you make a "Shadowlands worker" who can build a set of Shadowlands improvements that can be built on fallout but are otherwise normal?