Thank you for the feedback! I had planned on adding more concepts but I ran out of time and had to go to school. Since it's lunch break, I'll post one more, Haiti. So Haiti will understandably garner a "what are you on?!" from you but I'd like to explain my rationale. In all my games of DoC the Caribbean always stays in the hands of the same four powers: England, France, Spain, and the Netherlands. The cities are subject to constant flipping through war and congresses, but without player intervention hardly anything happens. I believe a Caribbean civ would give the region some much needed flavor, as it and the European powers struggle over the liberation of the colonies. The best candidate is Haiti, which became independent the earliest as well as having a tumultuous and eventful history. That said, here is the concept:
Haiti:
Spawn: 1804 AD at Port-au-Prince.
Leaders: Toussaint l'Ouverture (Renaissance to Industrial), Faustin I (Industrial to Modern), Duvalier (Industrial onward), Fidel Castro (Industrial and capital is in Cuba)
UP: Power of the Revolution: Moving units close to European colonies causes the colonies to go into revolt.
UU: Mawon: Replaces the Arquebusier, +25% strength when fighting in friendly territory and starts with Amphibious promotion.
UB: Citadelle: Replaces the Castle and adds an extra trade route.
UHV1: The Creole Revolution - Allow no foreign cities in the Caribbean in 1850.
Creole Revolutions were a series of independence movements in Central and South America.
UHV2: Emancipation of Latin America - Ensure that there are no slave units in Central or South America by 1870.
Ahistorical mission, Haiti was the one of the first nations to abolish slavery.
UHV3: Ecotourism - Have at least 25 trade routes passing through your cities and have no unhealthy cities by 1920.
One of the biggest factors in Caribbean and Central American economy is ecotourism, or tourism for natural sights.
Notes: Name should change to Cuba/Antilles based on the capital.