I must honestly agree with Civ Editor here. I think the sheer amount of countries they want to represent at the same time has doomed the scenario to be unplayable until someone figures out how to change some coding really deep down. If it weren't for that, we could probably get the mod running pretty quickly; the civics and technologies are largely completed and the unique buildings and structures are easy to code. As I've said, we should have had coalition civs with Nation Nodes to code for unique units and buildings.