All SWEPs have alt ammo counters that do literally nothing, and secondary fire sound is shotgun fire across the board

INCORRECT ammo types. The Revolver and AR6 use crossbow bolts yet the bolt isn't even shot out (an actual bullet is) and the Pistol uses AR2 rounds.

YOU CAN FIRE BOTH PRIMARY AND SECONDARY AT ONCE.

They share a slot. Rule of thumb, Pistols and revolvers in 2, Rifles and Submachine guns in 3, Shotguns and crossbows in 4.

The trailer was god awful, there's jpeg damage, it's 12fps (like your streams) among other things.