Atlantean Battleground [1.0] is submitted for review.

[XJ9]

New map: Atlantean Battleground [1.0] by XJ9.
Map editor link: Atlantean Battleground [1.0]

[zorro]

Since it is very hard to develop, you should make equal starting cities, so that everyone has the same chance when starting,
In the hard version you have one powerful and two good cities set as possible starting positions. If you start in the powerful one you can easily take the two good ones. But if you start in a good one, you can have a hard time taking the powerful one and then be stuck with two cities for a long time while others may have three. That makes a massive difference.