Just like the Abandoned Augur Mines and Vaults and others, the Order Bunkers are a new activity in Borderlands 4 that you can clear to unlock bosses that you can farm for Legendaries and their respective dedicated drops, and to obtain SDU Tokens for storage upgrades.
That aside, some of the bosses found within these Order Bunkers are also associated with the Ultimate Vault Hunter Mode. In short, UVHM. So eventually, you will have to clear these bunkers.
So with that said, here’s my guide covering the location of all Order Bunkers in Borderlands 4, their bosses, and their Legendary drops loot table.
How to unlock Order Bunkers in Borderlands 4
In Borderlands 4, you unlock the Order Bunkers upon completing the main story quest, One Fell Swoop, in the Fadefields region.
If you go by the chronological order, it is the fifth main mission in the game.
Once you complete it, a pop-up appears saying Order Bunkers Unlocked.
All Order Bunkers, their bosses, and Legendary drops in Borderlands 4
In total, there are six Order Bunkers in Borderlands 4, each with a boss that you can farm for their dedicated drops along with other Legendaries and general loot.
These are:
- Fadefields
- Blacklime Bunker (The Howl)
- Tipping Point (Idolator’s Noose)
- Carcadia Burn
- The Crawlcroft (Grindstone of the Worthy)
- Terminus Range
- The Wireworks (The Low Leys)
- Craven’s Nook (Heart of the Mountain)
- Dominion
- Ironwall Resolve (Terminus District)
Blacklime Bunker
The Blacklime Bunker is located in The Howl sub-region of the Fadefields region at the above marked location.
Head there and you will spot the bunker within a small cavern-like area.
To open the Blacklime Bunker door, you must throw the Locust Canister on it to get rid of the armor blocking the door.
You can find the Locust Canister on the elevated area from where you glide to reach the bunker’s entrance. As you can see in the above screenshot.
Core Observer boss and its loot table
The boss that you can fight within the Blacklime Bunker is the Core Observer.
| Legendary Drop | Category | Legendary Effect |
| Defibrillator | Repkit | Cardiac Shock – When Health goes below 20%, there is a 50% chance to replenish a Repkit Charge. |
| Divided Focus | Assault Rifle | Conquerer – Fires bouncing Projectiles that pierce enemies. |
| Bully | Pistol | Defense Protocol – When Gun Shields are activated, launches an attack drone every 14s. |
| – | – | – |
Tipping Point
The Tipping Point Order Bunker is located in the Idolator’s Noose sub-region of the Fadefields region at the above marked location.
Once again! To unlock the door, you must hit it with a Locust Canister to get rid of the armor on it.
To get to the Locust Canister, head towards the giant exhaust fan located left of the Tipping Point bunker’s door.
Go through the opening in the exhaust.
On the right side, you will find a ladder. Take it.
Make your way towards the control room. There, you will find the Locust Canister and a hole on the floor.
Take the Locust Canister and drop down.
Make your way towards the Tipping Point Order Bunker’s door.
Once there, throw the Locust Canister on it to unlock the door.
Mimicron boss and its loot table
In the Tipping Point Order Bunker, you fight Mimicron.
| Legendary Drop | Category | Legendary Effect |
| Complex Root | Sniper Rifle | Sierpinksi – Spawns additional diverging projectiles along its path. |
| UAV | Grenade | Death From Above |
| Luty Madlad | SMG | Homemade Ingenuity – Overheats quickly, but also cools down quickly. |
| – | – | – |
The Crawlcroft
The Crawlcroft Order Bunker is located in the Grindstone of the Worthy sub-region of the Carcadia Burn region at the above-marked location.
Head to the player icon location, and you will find a cave entrance.
Drop down. Once you reach the ground, look on the right side and you will find the Locust Canister.
Throw it on the bunker’s door to access it.
Fractis boss and its loot table
In The Crawlcroft, you fight Fractis.
| Legendary Drop | Category | Legendary Effect |
| Chuck | Assault Rifle | Pitcher |
| Protean Cell | Shield | Direct Current – Ground Slam to toggle this effect. While enabled, drains Shield over time to grant +40% Bonus Shock Damage, and Damage Taken passes through the Shield. |
| UAV | Grenade | Death From Above |
| – | – | – |
The Wireworks
The Wireworks Order Bunker is located in The Low Leys sub-region of the Terminus Range region at the above marked location.
Head there and glide across the life-like platform.
On it, you will find the Locust Canister and a ladder leading to The Wireworks Bunker’s door.
What you can do here is either aim and throw the Canister from below.
Or, you can throw the Locust Canister at a 90-degree angle, quickly use the ladder to reach the top, and grab the Locust Canister using your grapple before it falls.
Similar to before, throw the Locust Canister on the locked door to unlock it.
Divisioner boss and its loot table
Within The Wireworks Order Bunker, you fight the Divisioner.
| Legendary Drop | Category | Legendary Effect |
| Sideshow | Pistol | Juggler – Let’s play a game. Shoot as many targets as possible before they hit the ground, and refill up to 2 Ammo per target hit. |
| Inkling | Heavy Weapon Ordnance | Inkling – Fires bouncing Projectiles that leave an Elemental Splat on bounce. |
| Principal | Shield | Shield Boi – Spawns a Shield Boi when the last armor segment breaks. |
| – | – | – |
Craven’s Nook
The Craven’s Nook Order Bunker is found within the Heart of Mountain sub-region of the Terminus Range region at the above-marked location.
To reach the bunker’s entrance, you will have to do a little platforming. I recommend putting a waypoint and then following your Echo-4.
Once you arrive at Craven’s Nook Bunker’s door, look near the cliff.
You will find the Locust Canister. Grab it and throw it on the door to unlock it.
Callous Harbinger of Annihilating Death boss and its loot table
In the Craven’s Nook Bunker, you fight the Callous Harbinger of Annihilating Death boss.
| Legendary Drop | Category | Legendary Effect |
| Hot Slugger | Shotgun | Blazing Barrel – On kill, deal +30% Damage for 10s for a Maximum of 3 Stacks. |
| Atling Gun | Heavy Weapon Ordnance | Whistler |
| Kaleidosplode | Shotgun | Colorful Mess |
| – | – | – |
Ironwall Resolve
The Ironwall Resolve Order Bunker is located in the Terminus District area of Dominion at the above marked location.
Similar to before, to unlock the Bunker’s door, you need a Locust Canister.
Head to the above marked location, and you will find the Locust Canister.
It is on top of the pile of trash as you can see in the above screenshot.
Grab the Locust Canister and head to the Bunker’s door. Throw it on the door to remove the armor and unlock the Bunker’s door.
Directive-O boss and its loot table
In the Ironwall Resolve Order Bunker, you fight the Directive-O boss.
| Legendary Drop | Category | Legendary Effect |
| Whiskey Foxtrot | Assault Rifle | Overdrive – Switches to a secondary Magazine that can be fired on Full Auto. |
| Bonnie and Clyde | Assault Rifle | Pair of Thieves – On kill, grants +100% Damage for the Gun’s other Mode and refills its Magazine. |
| Rowan’s Charge | Assault Rifle | Stalker – Grants a 20% Chance for shots to be a Critical Hit, and refunds 2 Ammo on Critical Hit; Always generates with Torgue Sticky Magazine. |
| – | – | – |
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