Ah, so it's intended that I can't have super Zulus... I actually quit my Shaka game out of disappointment that I couldn't have that op promo.
This is a great map and I've played many games on it, but I have a few suggestions for improvement. Firstly the size of oceans could be toned down a bit. I mean the Pacific mostly (as it's easiest). If you play on Standard speed, your ships have a hard time getting around in a timely fashion. Maybe you could smash Alaska and Siberia a little bit and shrink the Pacific? After all only a bit of realism is lost with that change, and the gameplay benefit is obvious.
There could be a little less luxuries and strategics on the map. Right now trading is a bit redudant after a while. Also either every civ should have Salt in the beginning or none should have it... It is a completely broken resource in that it gives both early food and production. As it is many civs already have it so maybe give it to the few who do not.
Consider lessening the amount of rivers and mountain chokepoints on the map. Not only does it make slaughtering the AIs a thing of total ease on the defense, it also makes some invasions quite impossible until a good tech lead / Artillery. Attacking Persia from the west, for example, is a losing proposition with anything but Camel Archers and even that might be tricky. Similarly if you're Japan and aim to take Beijing, I hope you teched to Arties because those damn commies are dug in like field rats.
Lastly I hope that you'll reconsider your decision to place only CSs in the Americas, or make another version of the map with the civs put back there. The reason is that I like the occasional challenge of a runaway Aztec or America, and more importantly that the AI is still basically inept at overseas colonization and it gives you a great advantage if you beeline for Astronomy as a coastal civ and begin to colonize.
Can't think of any other criticisms... This is a great map in that it's not too humongous in size yet it still retains a good amount of realism in the shapes of the continents. And Europe is just big enough (although just barely).