Rotator Gun

FIREARM RARE HEAVY MACHINE GUN DEPLOY MOUNTED PIERCING

A watercooled multibarrel machine gun that cycles automatically to avoid malfunctioning. Can fire short bursts or lay down fire in a sweeping arc expending all ammunition. You must use a full turn to deploy the weapon before you can fire it or it can be mounted on a heavy weapons platform.
When fully loaded it has 3 charges (30 ammunition).

Burst Fire (1 charge). in a 120 ft Line, 5ft wide, all creatures must make a Dexterity Saving Throw DC 8 + (Firearm proficiency) + Dexterity modifier, on success take half damage, 6d6 Piercing or Bludgeoning damage (when proficient with Firearms add Dexterity modifier). When a creature fails the Saving Throw more than 10 points it take an extra 3d6 damage.

Sweeping Arc (3 charges). in a 120 ft Cone, all creatures must make a Dexterity Saving Throw DC 8 + (Firearm proficiency) + Dexterity modifier, on success take half damage, 6d6 Piercing or Bludgeoning damage (when proficient with Firearms add Dexterity modifier). When a creature fails the Saving Throw more than 10 points it take an extra 3d6 damage.