In contrast with the L30 Gatling laser, this model is not only fully automatic and has a much larger ammo capacity, requiring a back-mounted battery pack, but was also mass produced for military use. While they entered service shortly before the war, they quickly became an important part of the arsenal, both of pre-War and post-War factions.
Vengeance is a unique Gatling laser featured in Fallout Shelter. Dealing 21-26 per attack, it has the third highest damage output for a single-target ranged weapon in the game, behind the Overcharged plasma thrower and Dragon's Maw. It deals single-target damage with multiple shots, and when questing the weapon will change targets if the original target dies, reducing wasted damage output. Because of this, Vengeance is the strongest non AOE weapon overall.