As a Dual Gunner, you can shoot from nearly any distance on the battlefield, although the closer you are to the target, the more damage you deals. Instead of a combo, shots are fired two per attack until the guns' ammunition is depleted. After all ammunition has been expended, the weapons are automatically reloaded, which takes only a short moment, but you can also manually reload any time. The Build-Up Attack is an area attack that targets and hits all enemies three times with damage that is also dependent on range from the target, reloading the guns in the process.
The Dual Gunner can easily attack from afar, and quickly racks up hits. It also easily knocks smaller enemies into the air, putting them in a lock which is impossible for single targets to escape. The one downfall of the Dual Gunner is that even though you can attack from anywhere, you still deal the most amount of damage when at point-blank range.
* Justice (Normal, SP Required: 24, Job Lv. 21)
* Judgment (Additional, SP Required: 0, available by using 'Double Trigger')
(Info from .hack//wikia)