{.913} There should be upgrade unit party to company or downgrade or something like that.
I mostly don't build party or small army, I just try to reseached all the way to the end, to get best of best as I able, why I didn't building early unit? because some unit can't upgrade weapon or choice what kind of weapons or armor, and more imporitan, you couldn't upgrade party to company, that's why I don't build very much unless I had to to hold a.i longer, till I get company then I start building unit. there is should be upgrade party to square to company, but nice to add downsize if keep wage cost down, I guess.