Yeah I found out that continents is no good for high score games. The logistics of getting ~550 Modern Armor, 25 armies, and about 200 artillery across the ocean turned out to be a problem. I didn't want to go with any less than I did because sumeria had taken over about 75% of the other continent. Good old Deity AI with 600 MI + tows and un-upgraded infantry in huge metros made for some razing fun, hence all the slaves.
They had actually switched back to democracy from fascism. It was quite amusing when I investigated a city after opening the offensive. Needless to say they had 2 turns of no production immediately after.