Fixed ammo bars in hud being positioned incorrectly if a weapon in the slot has no ammo.
Sentries now will also complain if the terrain is too steep or you're trying to deploy them in mid-air.
Adjusted protomag spin animation. Still not perfect but I tried my best.
Guess what: more PNG optimization.
Assigned all pickup models.
Implemented all ammo types.
Finished Flak Cannon.
Additional cleanup.
Slot reassignments and other adjustments to match known Unreal prototype info.
