|Reload type||No Reload|
Fires explosive shells
Mini-crits airborne enemies on direct hit
-33% explosion splash damage
Weapon has limited range
"Which piece of you should Heavy send home to momma?"
Anti-Aircraft Cannon publicity blurb
Instead of bullets, this thumping old beast shoots short-range explosive rounds, so fast you can't see them—or airblast them—in flight. They'll detonate when they hit a surface, but they'll also detonate at a fixed range, dealing midair splash damage that's tough to avoid. (We've reassured Heavy that flak cannon explosive rounds are a lot like bullets.)
The Anti-Aircraft Cannon, commonly referred to as the AA Gun, is a primary weapon for Heavy, added in the Fight or Flight update. It resembles an anti-aircraft cannon, scaled down so as to be carried by a person.
Compared to the stock Minigun, the Anti-Aircraft Cannon has a much slower firing rate, less ammo, and a limited effective range. However, it fires high-damage hitscan bullets that explode when colliding with a surface or a player, or after 900 Hammer Units, dealing splash damage to all enemies in its wake. Despite being hitscan, the bullets still have a 6.5x6.5x6.5 Hammer Unit collision hull, meaning they cannot fit through very small gaps or shoot around tight corners, and can hit enemies even if the user's crosshair is slightly off of them. This also means that the bullets cannot be airblasted by an enemy Pyro, and will not destroy enemy stickybombs. The user can take damage (but not knockback) from their own explosions, so it is necessary to keep a short distance from whatever they are shooting at. This is assisted by the weapon's high knockback, preventing enemies from closing the distance between them and the Heavy. The Minigun's damage penalty against Sentry Guns does not apply to the Anti-Aircraft Cannon.
In addition, the Anti-Aircraft Cannon will mini-crit enemies who are 128 Hammer Units above the ground, and will mini-crit enemies who are explosive jumping or using a Jump Pad from any distance. The weapon's high knockback means that enemies can be juggled in the air, allowing for multiple mini-crits on an airborne enemy.
|Ranged or Melee?||Ranged|
|Minimum splash||33%||90 HU|
|Damage reduction||1% / 0.9 HU|
|Attack interval||0.55 s|
|Windup time||1 s|
|Winddown time||0.5 s|
|All values are approximate.|
- Added the Anti-Aircraft Cannon
- Reduced blast radius from 110HU to 90HU wide
- Reduced damage from 60 to 55
- Overhauled sounds
- Reduced bullet hull size to 6.5HU (from 10HU)
- Increased base damage to 58 (from 55)
- Fixed the Heavy's voicelines and expressions not playing while revved and firing
- Part of the publicity blurb for the Anti-Aircraft Cannon says "Shoot for the moon!". This is part of the quote "Shoot for the moon. Even if you miss, you'll land among the stars". It is commonly attributed to Norman Vincent Peale, who was inspired by the Space Race.