Final Fantasy Tactics A2: Grimoire of the Rift/Hunter

The Hunter is a huge upgrade from the Archer class. Hunters gain a huge boost in the attack department just from the use of Greatbows over Bows, plus they can learn Ultima Shot and Sidewinder. Used correctly, a Hunter can be one of the most powerful classes in the game. However, it might be more prudent to use a Gria as a Hunter, as their stats are much better than Humes'.