Overhaul bug fix 1: PRW47 Firemode 1 startup sound wasn't playing.

Major Overhaul.

*DID* work I'm just dumb.

didn't work

another oversight fixed, I hope.

Maybe fixed that annoying weapon switch bug? I really don't know at this point.

Fixed an oversight involving switching weapons looking for a menu that doesn't exist.

Added alternate ammo menu to B3LCH-EXM9 as proof of concept, weapons with ammo counters now use lerp for smoother readouts.

Bug hotfix, forgot to change a few classnames.

All weapon classnames as well as some entities are preceded by 'azbr_pr_' to ensure no conflicts. BRP5a2 resound.