Many people complain about 1UPT leading to difficult management of units. I was thinking that we could have military camps or outposts as a type of tile improvement. Multiple units would be able to stack on them, making organization easier. To avoid making them overpowered, only one unit in the stack would be able to defend the camp. If they're defeated, all the units on the stack are lost (thus forcing the player to be careful about using them). In addition, there could be limits on how many units they store, or how many total can be built. Any thoughts on this?