You know how to use a special weapon.
Prerequisites: Proficiency in basic melee weapons or small arms (see below).
Benefit: You gain proficiency in a single special weapon of your choice (see Weapon Proficiency on page 243). If the special weapon you choose is a melee special weapon, you must have proficiency in basic melee weapons. If the special weapon you choose is a ranged weapon, you must have proficiency in small arms. If a set of special weapons are all different Models of the same weapon, proficiency in one such weapon grants proficiency with all weapons in the set.
Special: You can take this feat multiple times. Each time you do, select a different special weapon.