For the love of God, no Zulu please.
I never understood West's fascination with Zulu and using it as an example of 'African power'. There were a lot of cool Subsaharan empires and actual CIVILISATONS with urban centres, long range trade, great kings, warriors etc who also often managed to put actual long term resistance to colonization.
Queen Nzinga and Kingdom of Kongo
Nyatsimba Mutota and the Great Zimbabwe
Kilwa Sultanate or general Swahilli Civilisation
of course Ethiopia which actually managed to repeal European invasion
tons of cool empires from West Africa (Mali, Ghana, Songhai, Hausa, Yoruba, Ashanti - who were FAR more impressive in their resistance vs British than Zulus)
ancient (conquered Egypt) or medieval (resisted caliphates for centuries) Nubia
If you wanna historical examples of 'succesfull African resistance to Europeans' you have badass examples of Nzinga of Kongo, Ethiopia or Asante Wars (those guys actually managed to win versus British empire first two wors they fought, on bigger scale and in better style than Zulu too)
Instead of those civilisations - actual developed civilisations - we get Zulu. Very small, ephemeric primitive kingdom which was on the tech level or spear and shields, with economy and politics based around cattle. In the goddamn industrial era. IIRC, on area smaller than Wales. Lasting for few decades. No written language or cities.
"Great military" which managed to get one or two victories over incompetent, greatly outnumbered, exhausted, lost British soldiers, and then was completely annihilated with minimal losses by extremely minor British forces led by some second-class officers and few gatling guns.
Then its capital was burned and state never resurrected, after breatktaking imperial legacy of few decades of cattle wars, terrible losses to numerically inferior enemies (Boers - battle of Blood River, totally pathetic Zulu loss, even worse than Rorke's Drift)
Not only all that, but on top of this fail, expansion of "brave warrior Shaka" is IIRC considered a genocide of other neighboring tribes.
So, to sum up, very small, primitive tribe, which managed to get 1-2 victories in insignificant skirmishes (because let's be honest, what is loss of 1000 British men? In Napoleonic Wars European states had armies of hundred thousands of men) and then be completely annihilated by the first competent modern force.
Please no Zulu, for the love of God, I don't care about "it's civ tradition" in the slightest (I also strongly dislike Gandhi as Indian leader and would love him changed). It's very good you wanna include civilisations from outside of Europe, Firaxis, I applaud that as staunch anti-eurocentrist, but if you wanna include something from black Africa make it an actual civilisation. Kongo, Swahilli, Ashanti, Ethiopia, Nubia, Ghana, whoever, just let it be actual empire.