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

[Enakai]

Kyle and I have been internally reviewing the mechanics and intent behind the weapon so we can make it feel better to use. We want to keep it semi-automatic and don't want to go down the burst fire or automatic route, as the intention is for the pistol to be semi automatic, and the SMG to be the higher rate of fire variant. We're gonna be looking at the projectiles too.