Uncommon combat modifiers, What do most GMs encounter most? Options

[RedmondLarry]

I wrote a program to calculate Ranged Combat modifiers (see posting in Community Projects). But there are many modifiers it doesn't handle. It's intended for the many GMs who come up with a great story and opposition but want to simplify the running of combat.

Which of the following uncommon combat modifiers do you think regular GMs encounter most?

Electric Shock disorientation
Flash-pak
Seeing by flash-pak
Flash Grenades
Super Flash grenade
Spirit concealment of target
Spirit confusion of shooter
Spell confusion
Spell Enhanced Aim
Penalties for Dwarf/Troll for standard-size weapons
Off-hand shooting
Dual firearms
Firing by Magic Fingers
Firing from body possessed against its will
Shooter forced by Control Actions
Shooter forced by Control Emotions
Firing through a barrier spell (+1 vision mod)
Modified weapon range due to CC design rules
Drug effects?
Other (what?)