[CLOSED PR] Makes Signifer II stun mode fully automatic.

[Jakson]

I would like to repeat the sentiments made in the PR description and agree that, yes, it's really uncomfortable and awkward to use the signifier's stun mode. It feels like it wants to be a SMG-style taser (higher capacity, weak energy pellets) but has the operations of a standard taser, resulting in this weird confliction. I'd be okay if it was burst fire instead of automatic, but either works. Just not this weird semi-automatic pea shooter.