You are proficient with a particular kind of weaponry.
Effect: Choose one Weapon Group. You are proficient with all weapons of the selected group. Weapon Groups include the following:
- Simple Weapons (Includes Simple Weapons (Melee), Simple Weapons (Ranged), Grenades, and Mines)
- Heavy Weapons (Includes both Heavy Weapons and Vehicle Weapons)
- Advanced Melee Weapons
Normal: If you wield a weapon with which you are not proficient, you take a -5 penalty to your attack rolls.
Special: You can gain this Feat multiple times. Each time you take the Feat, it applies to a different Weapon Group. You cannot take Exotic Weapons as a weapon group; instead you must select the Exotic Weapon Proficiency Feat to gain proficiency with a specific Exotic Weapon.