My apologies, the launching issues were not your mods fault.
My current suggestions would be:
-Changing the icons
If you want to change the icons might I suggest looking at Dreadherring's Persia civ on the forums here.
He managed to do that as well as changing the icon for his unique unit which the zulu warrior would benefit from as well, currently it's using the settler icon which is kind of awkward to use in combat situations.
-Changing the colours of the nation, unless the Zulu have a deep connection to yellow and pink I am not aware of, the classic brown and white-ish colour fits them better
-Perhaps changing the name of the Zulu Warrior to either Impi or some other name that would fit better according to your judgement, just Zulu Warrior seems a bit boring
-Updating the description of the nation to his description from the Civ V civilopedia, couldn't find the actual loading screen text but this is an improvement:
"Strike an enemy once and for all. Let him cease to exist as a tribe, or he will live to fly at your throat again." According to the diary of H.F. Flynn, Shaka voiced this edict to his ally Dingiswayo concerning a defeated enemy; even if apocryphal, these words certainly summarize Shaka's philosophy. Bastard son of a tribal chieftain, Shaka kaSenzangahona would oust his half-brother in 1816 AD to claim leadership of the Zulus. He is credited with unifying the Nguni tribes into the Zulu Kingdom. Although called a military genius for his reforms and innovations, he has also been condemned for the brutality of his reign. Whatever the judgment, Shaka laid the foundation for an imposing Zulu state. Upon his assassination in 1828, the Zulu were poised to challenge even the Europeans for control of southern Africa.
But above that, thanks for putting a nice and functional mod out there.
I like the idea of the militairy card, in a way replacing the reduced maintenance the zulu's had, as well as giving them a strong early unit.
I am curious about the whole Early war thing though, what do you mean with that?
It seems like it's describing a playstyle while it's in the spot for the nation's ability.
Would the ability be to have specific casus belli earlier?