We know that although they share a very specific history, especially in the wol's time line, the African continent is very rich, coarse and extensive in terms of culture.
once they have added more african civilizations. have you thought about dividing the culture into 2?
the saharian and the sub saharian (?)
I am not saying to divide the culture into 2 different ones with different mechanics each one, i mean to give them a separate roost, buildingset, or even generic buildings.
similar to the case of Latin America, in which brazilians, paraguayans, argentines and haitians have a buildingset and share units such as the hussar, the dragoon or the pikeman. while mexicans, chileans, peruvians and colombians have other buildingset and share other units such as the lancer, the machete and the conscript.
in the first group would be the egyptians and the ethiopians and other like the sudaneses, argelians, moroccans, kanembu or somalians.
in the secont group would be the zulues, the malgaches, and in summary all the ecuatorial and austral people.