So I've a few questions regarding the setting if you don't mind. The first will be regarding the customization of the soldiers. These troops can be made to look wildly different while still having the same 'stats', but my question is to how different? For instance, could one tailor their militia unit to look like a horde of small arms totting zombies? Or goblins? Or constructs made of sand? Or are they restricted to being human in appearance? I also feel I must inquire towards replacing these tiny living miniatures. Normally these things are made of plastic and metal and what-not, and when defeated are moved off the board with ease, but these are tiny living people, being shot at by other tiny living people, logically if they go down and don't receive aid they die, so what happens when a unit goes down? Do they respawn after the battle? Do you have to pop by the local nerd store to buy a new unit?
While I am on the subject of tiny living people, they are ageless tiny soldiers with intelligence and what-not, so can they learn? Can they gain their own personality, become better at combat, learn tactics, or even just how to cook? Do they come out of the box with installed personalities and skill sets that are incapable of being altered? Can they make friends with other tiny soldiers, or with their owner?

Those are the main questions that come to mind, my pardon for the small wall of text but even if the setting doesn't need to make sense I feel like these questions would be helpful to address, though of course I could be wrong.