I'm confused. You want more rare weapons? You want more guns? You don't like the auction system (even though the only "op" weapon in it is the souizen)?

If weapons are rare, then they have to either have ridiculous prices (although rarity will only last for a few hours, seeing as gralat packs will be bought instead of hours of jobs), be auctioned (which you don't seem to like), or be put in difficult and little occurring missions.

I support adding more gun shops, but these guns won't be "freakin' rare".