Caius, I have a french medieval fantastic comic that has some units that are pretty much a mix of Greek-Byzantines-Medieval troops you might want to have a look at... I can scan it to send you the pictures if you want... let me know.

Btw, one Fine idea it is... some historical-fantastic world to rule the world ! :D

If you have the mongols already in the game, you might want to use that trigger to get someone else involved... like the Aztecs invading europe from the west ! ;)

I just read this french guy Jacques de Mahieu who strongly beleive that Vikings lived in southamerica... and that they came down here as early as 967 AD !!! First to Mexico with some 700 Vikings of both sex... and that 20 years later he left Mexico to go to Venezuela and Colombia... And suposedly they went down the rivers and finaly installed themselves in the shores of the Lake Titicaca, and founded their colonial capital their called : Tiahuanacu. And with the help of the Aymaras and the Quetchuas conquered a big piece of land up to chile, where the Diaguitas from north of Chile around 1290 revolted and finally killed most of the whitemen and burned down their capital city in Titicaca. But some 10 years later, a few of the faithfull native got together and built a city in El Cuzco and founded the Inca Empire...
Anyway, to make this short, even if the idea is pretty wild, he selfconvinced everyone he found many signs of this coalision and mixture... but my point is, you could have some VERY original units coming back to europe from the west this time, with very original skins...

The book is called "Drakkars on the Amazon" (The Vikings in the Pre-columbian America) from Jacques de Mahieu.

At your service, Bohemians The Arrawak Viking Guard