Looking at Crossbow Autoloader trivial schemetic and trying to figure out its purpose.
A regular crossbow has Loading property, which allows you to shoot once a round without spending an action to reload your weapon. Reload (N) property requires 1 action to reload your weapon once every N shots.
"Hold on," you might say, "Clearly, Reload is superior option, because unlike loading it doesn't limit your number of attacks to one."
Yeah, sure, but Engineer doesn't bonus attacks, as a class ability or a gadget, so what's the point? Multiclass into fighter after fifth level?
As it stands, this schematic is straight up downgrade.
Does Net Launcher give you proficiency bonus when you use it? Like, you got to take the proficiency separately?