So I began getting everything ready for a Dieselpunk inspired setting for a series of books I plan on writing sometime after I graduate from High School. For those of you who do not know, Dieselpunk is any setting that is inspired by both world wars and the interwar period between them, where automobiles, tanks, airplanes, and all sorts of vehicles came into popularity since diesel gas became more easily accessible (hence the name "Dieselpunk"). Naturally, this comes with a technology shift, such as what weapons are available now that firearms are extremely commonplace now.
I have been running a game of Pathfinder with some homebrewed rules for my friends, the most comprehensive of which is the new firearms. I have attempted into trying to introduce very advanced firearms without completely abandoning other weapons. The link to the rules are as follows:
https://docs.google.com/document/d/1Rfdurs4Xp1kb00wN-bUPdRFEjvvHrYvPTKGgCY4 vO4E/edit?usp=sharing
My question is what does everyone else think about these rules, and what can I do to improve them?