Peacebreaker Cannons Rafa Boss Farm Build
★ 8 SHiFT Codes as of September 2025
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★ Elemental Weakness Chart
☆ Legendary Weapons
★ Builds: Vex | Amon | Rafa | Harlowe
☆ How to Respec Skill Tree
The Peacebreaker Cannon Rafa build focuses on maximizing Rafa's damage output while his Peacebreaker Cannons are active to make farming bosses easy in Borderlands 4. See the best builds, skills, weapons, and gear to use for Rafa, along with the best skill tree abilities and character playstyle.
| All Rafa Guides | |
|---|---|
| Leveling Build | Boss Farm Build |
| Arc-Knives Build | Rafa Cosmetics |
| Rafa Skill Trees | |
Peacebreaker Cannons Rafa Build Guide
| Jump to a Section! | |||||
|---|---|---|---|---|---|
| Skill Tree | Skill Progression | ||||
| Weapons | Repkit | ||||
| Class Mod | Enhancement | ||||
Rafa Best Skill Tree and Action Skill
| Skill Tree |  Remote Agent |
|---|---|
| Action Skill: Peacebreaker Cannons | |
Peacebreaker Cannons summons two turrets on Rafa's shoulders, which then automatically shoot enemies around him. When built right, the Peacebreaker Cannons not only deal a lot of damage to enemies, but can also buff Rafa so that he himself can deal a lot of damage.
Rafa Best Skills
| Jump to a Section! | ||
|---|---|---|
| Skill Tree | Skill Progression | |
| Augments | Capstone | |
Best Passive Skills
 | |||
| Skill Tree | Priority Skills | ||
|---|---|---|---|
 Remote Agent |  Sitiar Rafa gains increased Gun Damage.  Deft Hands Rafa and his Peacebreaker Cannons gain increased Fire Rate.  Juerga Whenever Rafa Critically Hits an enemy, Action Skill Duration is restored.  Resiliencia Overdrive Skill. Rafa gains increased Damage Reduction while Overdrive is active.  Maestro Rafa gains increased Skill Damage.  Asymmetric Warfare Indirect Projectiles gain increased Damage. Indirect Projectiles include all Action Skill Weapons, Thrown Guns, and Projectiles not fired from your Gun.  Everdrive Overdrive gains increased Duration.  Temerario Overdrive Skill. Rafa gains increased Gun Damage, but decreased Gun Handling. These Effects are based on how long Overdrive has been active.  Soltado Kill Skill. Double all Overdrive bonuses. | ||
 | |||
| Skill Tree | Priority Skills | ||
|---|---|---|---|
 People Person |  Las Jaras Overdrive Skill. Rafa Regenerates Ammo while Overdrive is active.  The Thrill (Rafa) Overdrive Skill. Rafa gains increased Fire Rate, which is increased even further while Overdrive is active. | ||
The best skills for the Peacebreaker Cannons Rafa Build revolve around maximizing turret damage and the Overdrive buffs that Rafa receives whenever he uses his Action Skill.
The passive skills you get from the People Person Tree will both help empower Rafa's Overdrive state, as The Thrill will increase his Fire Rate while Las Jaras provides Ammo Regeneration while in Overdrive.
Recommended Skill Progression
| Recommended Skill Progression | |||
|---|---|---|---|
| Sitiar Rafa gains increased Gun Damage. Lvl 2 | Sitiar Rafa gains increased Gun Damage. Lvl 3 | Sitiar Rafa gains increased Gun Damage. Lvl 4 | Deft Hands Rafa and his Peacebreaker Cannons gain increased Fire Rate. Lvl 5 |
| Deft Hands Rafa and his Peacebreaker Cannons gain increased Fire Rate. Lvl 6 | Juerga Whenever Rafa Critically Hits an enemy, Action Skill Duration is restored. Lvl 7 | Juerga Whenever Rafa Critically Hits an enemy, Action Skill Duration is restored. Lvl 8 | Juerga Whenever Rafa Critically Hits an enemy, Action Skill Duration is restored. Lvl 9 |
| Sitiar Rafa gains increased Gun Damage. Lvl 10 | Sitiar Rafa gains increased Gun Damage. Lvl 11 | Maestro Rafa gains increased Skill Damage. Lvl 12 | Maestro Rafa gains increased Skill Damage. Lvl 13 |
| Maestro Rafa gains increased Skill Damage. Lvl 14 | Deft Hands Rafa and his Peacebreaker Cannons gain increased Fire Rate. Lvl 15 | Deft Hands Rafa and his Peacebreaker Cannons gain increased Fire Rate. Lvl 16 | Everdrive Overdrive gains increased Duration. Lvl 17 |
| Everdrive Overdrive gains increased Duration. Lvl 18 | Everdrive Overdrive gains increased Duration. Lvl 19 | Everdrive Overdrive gains increased Duration. Lvl 20 | Everdrive Overdrive gains increased Duration. Lvl 21 |
| Temerario Overdrive Skill. Rafa gains increased Gun Damage, but decreased Gun Handling. These Effects are based on how long Overdrive has been active. Lvl 22 | Temerario Overdrive Skill. Rafa gains increased Gun Damage, but decreased Gun Handling. These Effects are based on how long Overdrive has been active. Lvl 23 | Temerario Overdrive Skill. Rafa gains increased Gun Damage, but decreased Gun Handling. These Effects are based on how long Overdrive has been active. Lvl 24 | Temerario Overdrive Skill. Rafa gains increased Gun Damage, but decreased Gun Handling. These Effects are based on how long Overdrive has been active. Lvl 25 |
| Temerario Overdrive Skill. Rafa gains increased Gun Damage, but decreased Gun Handling. These Effects are based on how long Overdrive has been active. Lvl 26 | Deft Hands Rafa and his Peacebreaker Cannons gain increased Fire Rate. Lvl 27 | Juerga Whenever Rafa Critically Hits an enemy, Action Skill Duration is restored. Lvl 28 | Juerga Whenever Rafa Critically Hits an enemy, Action Skill Duration is restored. Lvl 29 |
| Soltado Kill Skill. Double all Overdrive bonuses. Lvl 30 | Resiliencia Overdrive Skill. Rafa gains increased Damage Reduction while Overdrive is active. Lvl 31 | Resiliencia Overdrive Skill. Rafa gains increased Damage Reduction while Overdrive is active. Lvl 32 | Resiliencia Overdrive Skill. Rafa gains increased Damage Reduction while Overdrive is active. Lvl 33 |
| Asymmetric Warfare Indirect Projectiles gain increased Damage. Indirect Projectiles include all Action Skill Weapons, Thrown Guns, and Projectiles not fired from your Gun. Lvl 34 | Asymmetric Warfare Indirect Projectiles gain increased Damage. Indirect Projectiles include all Action Skill Weapons, Thrown Guns, and Projectiles not fired from your Gun. Lvl 35 | Asymmetric Warfare Indirect Projectiles gain increased Damage. Indirect Projectiles include all Action Skill Weapons, Thrown Guns, and Projectiles not fired from your Gun. Lvl 36 | Asymmetric Warfare Indirect Projectiles gain increased Damage. Indirect Projectiles include all Action Skill Weapons, Thrown Guns, and Projectiles not fired from your Gun. Lvl 37 |
| Asymmetric Warfare Indirect Projectiles gain increased Damage. Indirect Projectiles include all Action Skill Weapons, Thrown Guns, and Projectiles not fired from your Gun. Lvl 38 | The Thrill (Rafa) Overdrive Skill. Rafa gains increased Fire Rate, which is increased even further while Overdrive is active. Lvl 39 | The Thrill (Rafa) Overdrive Skill. Rafa gains increased Fire Rate, which is increased even further while Overdrive is active. Lvl 40 | The Thrill (Rafa) Overdrive Skill. Rafa gains increased Fire Rate, which is increased even further while Overdrive is active. Lvl 41 |
| The Thrill (Rafa) Overdrive Skill. Rafa gains increased Fire Rate, which is increased even further while Overdrive is active. Lvl 42 | The Thrill (Rafa) Overdrive Skill. Rafa gains increased Fire Rate, which is increased even further while Overdrive is active. Lvl 43 | Las Jaras Overdrive Skill. Rafa Regenerates Ammo while Overdrive is active. Lvl 44 | Las Jaras Overdrive Skill. Rafa Regenerates Ammo while Overdrive is active. Lvl 45 |
| Las Jaras Overdrive Skill. Rafa Regenerates Ammo while Overdrive is active. Lvl 46 | Las Jaras Overdrive Skill. Rafa Regenerates Ammo while Overdrive is active. Lvl 47 | Las Jaras Overdrive Skill. Rafa Regenerates Ammo while Overdrive is active. Lvl 48 | Resiliencia Overdrive Skill. Rafa gains increased Damage Reduction while Overdrive is active. Lvl 49 |
| Resiliencia Overdrive Skill. Rafa gains increased Damage Reduction while Overdrive is active. Lvl 50 | |||
From Levels 1-30, your goal is to stack points in the Remote Agent Tree until you unlock Bullet-Buddy Deluxe and Volatile Hollowpoints. Once Volatile Hollow Points is unlocked, with the skills equipped leading up to it, you should reach a point where you can effectively farm bosses alone.
From Level 31 onwards, take skills that will improve your runs significantly, both in clear times and survivability. Asymmetric Warfare further increases the damage your turrets deal, while The Thrill andLas Jaras both improve Rafa's Overdrive state. Lastly, Resiliencia provides additional survivability whenever you are in Overdrive.
Rafa Best Augment
| Augment | Effects |
|---|---|
 Bullet-Buddy Deluxe
|
• Bonus Fire Damage • Ammo Regen • Turrets shoot explosive bullets when your gun’s magazine is full • Press Action Skill button to activate infinite ammo (drains Action Skill time) |
A lot of Rafa's damage outside of his turrets will come from Bullet-Buddy Deluxe and its infinite ammo buff. Partnered with a high fire rate weapon, and you will be able to continuously rain bullets on your enemies while the turrets are present.
Rafa Best Capstone
 Volatile Hollowpoints
|
||
| Tree |
Remote Agent
(Branch 3) |
|
|---|---|---|
| Effect | ||
| Rafa's Peacebreaker Cannons are replaced with Rockets that deal Splash Damage. | ||
Volatile Hollowpoints will not only increase the damage that Rafa's turret deals, but they will now also deal splash damage, making them perfect for taking down mobs of enemies. This is especially useful when fighting bosses that summon minions.
Peacebreaker Cannons Rafa Best Weapons
| Jump to a Section | ||
|---|---|---|
| Legendary Weapons | Best Manufacturer | Best Weapon Type |
Strongest Legendary Weapons for Rafa
| Legendary | Gun Overview |
|---|---|
 Kaoson
|
Type: Submachine Gun Manufacturer: Vladof Granted Legendary Mod |
The Kaoson is perhaps the best weapon for Rafa in this build, thanks to its interaction with Bullet-Buddy Deluxe. The Kaoson is a Vladof Submachine Gun that will always come with a Torgue-Licensed Sticky Magazine, which allows it to fire sticky Gyrojets that explode upon reloading.
This means that while Bullet-Buddy Deluxe is active, Rafa can continuously shoot sticky Gyrojets at enemies without any of them detonating. Once Bullet-Buddy Deluxe runs out, and Rafa reloads for the first time, the stuck Gyrojets will all explode within a short amount of time. This sudden burst of damage is enough to take down bosses that do not have invulnerability windows.
Best Manufacturer for Rafa: Vladof
Vladof weapons have high ammo capacity and high fire rates, making them the perfect weapons to use while Bullet-Buddy Deluxe is active. Look for Vladoffs that have the Torgue-Licensed Sticky Magazine as this is essential to the build. If you can, also look for those with an Atlas-Licensed Underbarrel that shoots Trackers. This will make it easier to hit moving enemies with the sticky Gyrojets.
Best Weapon Type for Rafa: Assault Rifles and SMGs
The high ammo capacity and high fire rates of Vladof weapons are important if you want to attach as many sticky Gyrojets to the boss you are farming before your Bullet-Buddy Deluxe expires. As such, look for Vladof Assault Rifles and Submachine Guns.
Elemental Weakness Chart and Damage Guide
Peacebreaker Cannons Rafa Best Repkit
| Repkit | Repkit Effect |
|---|---|
| War Paint | Chrome: On use, grants +30% Fire Rate and +30% Movement Speed for 15s, and reduces Repkit Cooldown by 2s each time Damage is taken |
This is the best Repkit for Rafa thanks to its bonus Fire Rate and Movement Speed. Instead of using this defensively, use it right before your burst window to provide Rafa with even more Fire Rate.
Peacebreaker Cannons Rafa Best Class Mod
Instigator
Instigator is the best Class Mod for the Peacebreaker Ricochet build as it increases Gun damage by 2% with every shot. This means that as long as your Peacebreaker Cannon is active, you will just keep getting increased Gun Damage, which in turn increases your Ricochet Damage.
Rafa Best Enhancement Mods
| Enhancement | Effects |
|---|---|
| Vladof Enhancement |
・Box Magazine - Guns with Vladof-licensed parts gain +20% Fire Rate and +20% Magazine Size. ・Bullet Hose - Guns with Vladof-licensed parts have a 30% Chance to add an extra Projectile per shot. |
| Torgue Enhancement | ・Head Ringer - Guns with Torgue-licensed parts gain +25% Damage and +100% Damage Radius. |
Box Magazine and Bullet Hose are strong Vladof enhancements that will further empower your build, as you can potentially attach more sticky Gyrojets to your enemy.
Alternatively, you can get the Torgue Enhancement Head Ringer to increase the damage of the sticky Gyrojets.
Rafa (Exo-Soldier) Boss Farming Guide
Use the Tracker Grenade
The Tracker Grenade makes it easier to stack sticky Gyrojets on your target, so make sure to shoot it at your target whenever it is available.
Time Your Action Skill Well
As you only have a limited time in your damage window, make sure to time your Action Skill well. Great times to use your Action Skill and start your damage window include right after a boss or strong enemy arrives in the arena or while the boss is stunned after a mechanic.
Peacebreaker Cannons Rafa Build Overview
| Skills | |||||
|---|---|---|---|---|---|
| Peacebreaker Cannons |
Las Jaras Overdrive Skill. Rafa Regenerates Ammo while Overdrive is active.
The Thrill (Rafa) Overdrive Skill. Rafa gains increased Fire Rate, which is increased even further while Overdrive is active.
Sitiar Rafa gains increased Gun Damage.
Deft Hands Rafa and his Peacebreaker Cannons gain increased Fire Rate.
Juerga Whenever Rafa Critically Hits an enemy, Action Skill Duration is restored.
Bullet-Buddy Deluxe While Peacebreaker Cannons are active, Rafa and his Allies Regenerate Ammo into their Magazine. Rafa's Peacebreaker Cannons deal Bonus Incendiary Damage based on how full his Gun is, and his Turrets shoot Exploding Bullets while his Magazine is full. Pressing Action Skill while Peacebreaker Cannons are active causes Rafa's shots to consume no Ammo, but causes his Action Skill Duration to drain faster.
Resiliencia Overdrive Skill. Rafa gains increased Damage Reduction while Overdrive is active.
Maestro Rafa gains increased Skill Damage.
Asymmetric Warfare Indirect Projectiles gain increased Damage. Indirect Projectiles include all Action Skill Weapons, Thrown Guns, and Projectiles not fired from your Gun.
Everdrive Overdrive gains increased Duration.
Temerario Overdrive Skill. Rafa gains increased Gun Damage, but decreased Gun Handling. These Effects are based on how long Overdrive has been active.
Soltado Kill Skill. Double all Overdrive bonuses.
Volatile Hollowpoints Rafa's Peacebreaker Cannons are replaced with Rockets that deal Splash Damage.
|
||||
| Best Weapon Type | Best Manufacturer | ||||
| Assault Rifles and SMGs | Vladof | ||||
The build relies heavily on the Peacebreaker Cannons and the Overdrive buffs Rafa receives while they are out (and for a short time after they despawn). With heavy investment in the Remote Agent Tree, the build maximizes turret damage, as well as your Overdrive buffs.
For weapons, we highly recommend Vladof Assault Rifles and Submachine Guns with the Torgue-Licensed Sticky Magazine to stack damage on your target. Try to get the Legendary weapon Kaoson if possible.
Best Rafa (Exo-Solder) Build Playstyle
Optimized for Boss Farming
This Rafa build is specifically designed for Boss Farming, putting heavy investment in Rafa's damage, as well as his turret's.
Through our testing, Normal Bosses in Hard difficulty can be cleared in less than 1 minute under optimized conditions, and approximately 1:45 for tankier bosses such as Vault Guardians, and Auger Mine Bosses.
How to Farm Bosses
Viable for Mob Clearing and Leveling
Thanks to its AoE Capabilities from Volatile Hollowpoints, as well as the high ammo capacity and fire rate of Vladof guns, this build can still be used for leveling and clearing the story.
If you are facing difficulties in using this build for leveling, you can try investing more skill points into damage mitigation and Shield recovery. You can also use our designated Best Build for Leveling Rafa!
Best Rafa (Exo-Soldier) Build and Leveling Guide
Borderlands 4 Related Guides
Best Builds for Each Vault Hunter
All Character Builds
| Character | Build |
|---|---|
 Vex |
|
 Rafa |
Peacebreaker Cannons Boss Farm |
 Amon |
|
 Harlowe |
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Peacebreaker Cannons Rafa Boss Farm Build
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