Audio and minor bugfixes.

Added Tripmines

Fixed Gluon Gun beam effects, no longer fires invisible bullets but instead has an actual trace/beam attack.

Considering the Gluon Gun DONE for now, even though the beam isn't perfect. It's close enough to the effect I want, so I'm calling it for now.

Updated Gluon gun beam. FAR from perfect, but SIGNIFICANTLY better looking.

Fixed various texture and particle errors, nothing that'll be visible but it'll make for a cleaner console.

Fixed Gauss beam orientation
Added snazzy particle effects to Gauss primary and secondary fire
Buffed Gauss secondary damage to fit HL1 damage

Fixed crossbow zoom
Fixed crossbow sounds

Fixed worldmodel physics

Minor bugfixes

Added ammo entity preview images