Alchemist | Antipaladin | Arcanist | Barbarian | Barbarian (Unchained) | Bard | Bloodrager | Brawler | Cavalier | Cleric | Druid | Fighter | Gunslinger | Hunter | Inquisitor | Investigator | Kineticist | Magus | Medium | Mesmerist | Monk | Monk (Unchained) | Ninja | Occultist | Oracle | Paladin | Psychic | Ranger | Rogue | Rogue (Unchained) | Samurai | Shaman | Shifter | Skald | Slayer | Sorcerer | Spiritualist | Summoner | Summoner (Unchained) | Swashbuckler | Vigilante | Warpriest | Witch | Wizard
Companion | Drake | Eidolon | Eidolon (Unchained) | Familiar | Phantom
Adept | Aristocrat | Commoner | Expert | Warrior

Fighter Class Details | Adv. Armor Training | Adv. Weapon Training | Weapon Groups | Archetypes

Combat Competence (Ex)

Source Weapon Master's Handbook pg. 18
For any weapon in the associated weapon group with which the fighter is not proficient, the penalty on attack rolls taken as a result of not being proficient is reduced by an amount equal to the fighter’s weapon training bonus with that weapon group. Once the penalty is reduced to 0, the fighter becomes proficient with such weapons.