Fulizer wrote:however you may pay additional points to increase the number of actions
Multidexterity does not increase the number of ACTIONS, it increases the number of WEAPONS you can use in a single attack.
Regular creations and minifigs can attack with TWO ranged weapons under one action if they are able to fire them both (two one-handed weapons, not a one-hander and a two-hander). Multidexterity allows one additional ranged weapon to be fired if able.
This is also already covered in a thread that was posted only a week or so ago. One target unless you have Multitasking, two ranged weapons that are able to be fired at the same time unless you have Multidexterity.