The Heavy Gunner perk increases the damage dealt by heavy weapons such as miniguns, missile launchers, Fat Man, etc.
|1||STR 5||Thanks to practice and conditioning, heavy guns do 20% more damage.||0004A0D6|
|2||STR 5, LVL 11||Heavy guns now do 40% more damage, and have improved hip fire accuracy.||0004A0D7|
|3||STR 5, LVL 21||Heavy guns now do 60% more damage. Hip fire accuracy is increased even more.||0004A0D8|
|4||STR 5, LVL 35||Heavy guns now do 80% more damage and have a chance to stagger your opponent.||00065E2A|
|5||STR 5, LVL 47||Heavy guns now do double damage.||00065E2B|
For explosive heavy weapons, Heavy Gunner also increases explosives damage. This stacks with the Demolition Expert perk and taking both to their highest rank will result in 4 times damage (2 x 2).