In my opinion, the most frustrating part of this mod comes from the high variety of ammo types, and the very low occurrence of ammo from visitors, merchants, etc. It seems that only one or two merchant types sells ammo at all, and it is rarely what you need. Especially for tribal startups, it is a long time before you can make an ammo bench. There needs to be a MAJOR increase in the variety of ammo sold by military merchants, and all merchants need to sell some ammo. Also, I could be wrong but I think that you can't buy / sell ammo when you visit a village. If so that is a major issue.

I also recommend removing some of the rarer ammo types and replace them with more common ones. Some of the pistols come to mind here...