I think I have concluded so far with the map modifications. I have changed the name of areas to suitable Ancient names, I have used the names of ancient tribes rather than Geographical locations, for example Ligures instead of Liguria, or Boii instead of Modena.
I have left numbers, like city level, fortress level, etc, to be set later, after playtesting.
Now, I am considering what would be my next step. I think it should be the combat units, the models and units files.