Is it possible to alter the spawn rate / strength / location of barbarians and barbarian cities for certain maps? Also how do barbarians behave if left on a continent together, with several barbarian cities, do they attack each other? Is it possible to set the amount and locations of barbarian cities at the start of the game? By altering the map code? Is it possible to include barbarian muskets for example? The reason i'm asking these questions is because I'm trying to set up an earth game (using earth evolution 2 map) with no civs in the new world, just barbarian tribes, lots of them - if possible, to make it as difficult as possible for the inevitable conquering civs after Astronomy.