There seems to be different rules regarding firing multiple times with different weapons:
Handguns: Fire 2-3 times with a penalty dice on all attacks.
Semi-Auto Weapons: Fire 2-3 times no penalty first, +1 Penalty dice per successive attack
Shotguns: Fire twice, no penalty if at same target, penalty dice if a seperate target.
Is this all correct? Is there particular reason handguns work differently to other semi-auto weapons?
Also how do 2B and Semi-Auto shotguns work different, if at all, should a SA shotgun work as a SA rifle?