I saw a bunch of mods, claiming that their protox makes the game better cause now units don't take any population or only 1 to be built. Looking at the reviews I realized that isn't quite what ppl want. I on the other hand balanced the costs of units. Baracks cost only wood but appear to be made out of stone, so now they cost some gold and etc. I did however and a tiny bonus to houses to support +5 population but the pop cap is still at 300(as far as I remember).