Limiting units/square, other interpretation of hp, different promotion bonus

[batteryacid]

I think that stacks are just way too powerful im CIV 3 , and how realistic is it to have 40+ units on one square- it would be interesting to have some kind of unit limitation per sqare, depending on terrain type (mountains: lower limits) and unit type (panzers are bigger than spearman, or so), but it would be also a good combination with the regiment/division/bataillon idea (being able to build smaller fractions of a unit in smaller towns, e.g. "hitpoints" representing the amount of soldiers in your unit, and building regiment = 1hp, the next would be 5 with 10 hp as maximum for a "unit"), The elite/veteran promotion would then be better attak or defense or movement rating (e.g. ignoring movement penalties when infantery gets promoted to elite , 10% better attak value and 20% better defense value when promoted to veteran etc. etc. you get the idea)

I hope I didn´t repeat what other users were writing, but to my excuse I have only sneaked a bit in this forum and thought I have a good idea