* Basic Attack

- Atk. will be increased by 15%.

* M-137 Gatling Gun

- The incorrect Atk. bonus per level will be corrected.
- +13.2% at Level 47

* M-3 Flamethrower

- Atk. will be increased by 12.1%.

* Heavy Firearm Mastery

- Satellite Beam and Buster Beam will now be affected by Hand Cannons' Increased Skill Cooldown effect.

* Cannonball

- Heavy Firearm Enhancement will now apply the following effects to this skill.
   ㄴ The energy ball will no longer penetrate enemies, and immediately explode instead on hit.
   ㄴ The deleted collision damage will be added to the explosion damage.
   ㄴ The energy ball's flying distance will be increased.
- Atk. will be increased by 12.6%.

* Steyr AMR

- Atk. will be increased by 21.7%.

* Laser Rifle

- Atk. will be increased by 21.5%.

* Flame Pillar

- Atk. will be increased by 23%.

* FM-31 Grenade Launcher

- Atk. will be increased by 7%.

* FM-92 Stinger

- It will now immediately cast Super Armor. (Disabled in the Arena)
- It can now be canceled into Basic attacks.
- Atk. will be increased by 22.2%.

* Quantum Bomb

- It will now immediately cast Super Armor. (Disabled in the Arena)
- It can now be canceled into Basic attacks.
- The crosshairs will now appear in front of your character.
- Cooldown will be changed. (20 sec. → 18 sec.)

* X-1 Extruder

- It can now be canceled into Basic attacks.
- Atk. will be increased by 14.7%.

* Satellite Beam

- The crosshairs will now appear in front of your character.
- The laser duration will be fixed to 8.4 seconds across all levels.
- The laser duration will now be applied in real time.
- Atk. will be increased by 17.6%.

* Plasma Booster

- Its attack range will be expanded to where the gun barrel is.
- It will now immediately cast Super Armor.
- Clear Cube Fragment cost will be changed. (2 → 1)
- Atk. will be increased by 9.1%.

* FM-92 SW Stinger

- It will now immediately cast Super Armor.
- Clear Cube Fragment cost will be changed. (3 → 2)
- The bomb and flaming area Atk. will be increased by 6.4%.

* Heavy Firearm Enhancement

- Its tooltip will now include the changes it makes to Cannonball.

* Seismic Wave

- It will now immediately cast Super Armor.
- The seismic wave generator will now drop more quickly after targeting.
- The crosshairs will now appear at the same coordinates as those of Quantum Bomb and Satellite Beam.
- Atk. will be increased by 5%.

* MSC-7

- It will now immediately cast Super Armor.
- Clear Cube Fragment cost will be changed. (3 → 5)
- Atk. will be increased by 15.1%.

* Buster Beam

- It can now be canceled into Basic attacks.
- Atk. will be increased by 11%.

* Bug Fixes

- Heavy Firearm Enhancement's charge time reduction values will no longer be abnormally applied to Flame Pillar's Atk.
- Cannonball can no longer be canceled to give way to other skills.
- Cannonball's energy ball will no longer abnormally disappear without penetrating enemies.
- Sub Weapon Crusher's Atk. will no longer be abnormally applied to certain skills when it's not learned.