Borderlands 4/Ultimate Vault Hunter and Vault progression
Ultimate Vault Hunter and Vault progression
Clear Order Bunkers toward SDU upgrades
Order Bunkers are among the postgame activities named for SDU cleanup. Clearing available bunkers contributes toward fully upgrading SDUs, though the recorded information does not establish a fixed SDU payout for each one.
PC / Global, current through weekly rotation October 22–29, 2026
WHERE & HOW TO FARM
Where to farm
Order Bunker activities in unlocked Kairos regions. Find their available map markers during postgame cleanup.
Use Order Bunkers as regional completion goals while working toward SDU upgrades. This is a limited cleanup route: complete available bunker activities, then check your SDU interface to see what progress or upgrades you can apply. The available route facts do not specify bunker coordinates, a guaranteed per-clear reward, or a repeatable payout, so follow each activity’s in-game objectives instead of assuming a particular reward amount.
Complete the main campaign to access postgame activities.
Unlock the region containing an available Order Bunker.
Bring a combat build suited to the encounters shown by the activity.
Open the map in a region you have unlocked and locate an available Order Bunker marker.
Select it and travel to the activity’s marked location.
Enter the bunker and read the objective displayed in-game.
Advance through the required encounters and interactions in the order the activity presents.
Complete the final objective and collect any rewards shown in the activity.
Open the SDU interface and check your current upgrade progress.
If you still need SDU upgrades, find another uncompleted bunker or continue other postgame cleanup.
Farming tips
Check the SDU interface after completing a bunker rather than assuming an upgrade was applied automatically.
Group nearby cleanup activities when practical; the supported benefit here is completion progress toward SDUs, not a known fixed reward per bunker.
Repeat, collect and use
Each bunker is a completion activity; the available information does not establish an endlessly repeatable SDU payout for replaying one. Continue with other uncompleted activities for further cleanup.
Common mistakes
Expecting a guaranteed SDU item or quantity from every bunker: verify the actual reward and your SDU interface.
Leaving before the final objective registers: follow the activity until the game records completion.
Repeating a completed bunker for the same progression: choose another available activity if SDU completion is your goal.
When to stop or switch
Stop when your desired SDU upgrades are applied or you have no useful uncompleted bunkers available. Continue another postgame activity if you still have a separate progression goal.
