I understand now. Thanks for explaining the limitations to me, parthian_shot. That means that you cannot make a new religion(will have to use existing - Christians Catholic/Orthodox, Zorastrian and Pagan). What about those things like Sacrifices (Like Aztecs from ME2) and having both male and female leaders (i am not sure if that is even possible). Ill try to come up with something within those limitations, and also if it would impact other campaigns - then maybe it would be better if it has its own folder?

As the same units from the Rise of Empire time shouldn't appear again during its fall - some evolution-progress should happen.