Are you working on converting this mod onto a world map with cities and units using 1.29 editor? I you are i would certainly be interested.
I would have the following suggestions though. Find a world map that actually represents Europe correctly...Britian is only capable of holding one good city in the ones i have seen.
I would agree to have colonial assests but would make the population 'neutral' and often unhappy....of course this would mean the creation of a 'neutral' civ, for the scenario with cities, parts of africa, south and central america.
As for other civs i would leave out Canada, although for some of the vain canadians this would be a bitter pill. This is because Britian would need as much terrritory as possible to fight the war considering how small UK is in world map...Canada, Austrailia, Middle East must be under thier direct control
I would leave out Austria, Finland and Poland, as part of the 1939 Reich, and only include Italy so it can be a security risk to the germans and a general liability of an ally needing to be constantly bailed out
Crucial is the inclusion of China as their presence would provide a buffer to Japanese expansion, however it would need to have a comminst insurgance after the war....keeping in mind both factions united under the threat of Japan.
I dont know how you have handled the nuclear race but it there are two ways...one be historically correct and have Germany someway off nuclear capacity, or allow them to change strategic priority away from advanced rocketry and jet planes toward nukes
There should be some compensation for Germany's fascism in that her science should not be penalised for military advances
Russia and USA must have strongest industrial base...of course
Leaders must be created with correct locations.(is it possible to edit the leader properties and create and disband armies more than once?)
If you are not working on this I wouldnt mind helping by perhaps creating the cities, even add the units in correct number and position starting in 1939.
Give us a shout