Another rason is the impracticalibly of taking an army from Rome, Carthage, Macedonia or any other would-be conquerer of China to its actual destination. RL it would not be possible (unless you were the Mongols or Huns), and the Team has thus, AFAIK, decided that it will not include China as it would be as much fantasy as the Roman Ninjas of Vanilla.

There are several threads here dealing with these subjects. I dunno if you tried the "Search" Function? Thatt is always a good idea to try ;-) but sometimes one has to get the wording just right for the function to find what one is looking for.

And welcome, always good (and amusing) with a new enthusiastic EB-junkie.