Doc of the Bay is a side mission in Borderlands 4 DLC #1: Mad Ellie and the Vault of the Damned. This walkthrough will guide you through all objectives of the Doc of the Bay Side Quest.
- DLC required: Mad Ellie and the Vault of the Damned
- Starting Location: Kairos > The Whispering Glacier > DCN Feuermann
- Quest Giver: Patient
- Unlock Requirement: having finished Main Quest 4: What Lies Dreaming
- Reward: Money, XP, Shield (Green or Blue rarity)
- Quest Description: A Dahl soldier in the ship’s medical bay wants you to perform an operation. Good news: there’s no such thing as malpractice on Kairos.
Objectives:
- Find machine start button
- Start the operating machine
- Line up the parasites
- Shoot through the parasites
- Time limit: 1 Minute & Line up parasites
- Time limit: 1 Minute & Shoot through the parasites
- Time limit: 1 Minute & Line up parasites & Reroute electric
- Time limit: 1 Minute & Shoot through the parasites
Starting Location: Doc of the Bay
Find machine start button
Just head into the room to the right of the patient.
Start the operating machine
Press the button here.
Line up the parasites
To line up with the parasites, stand in the corner behind the patient.
Shoot through the parasites
Once you line up, the first parasite glows orange. Shoot it when it does that.
Time limit: 1 Minute & Line up parasites
Line up again with the parasites, this time from the room to the left of the patient.
Time limit: 1 Minute & Shoot through the parasites
Shoot the parasite once it glows orange. You have one minute before the mission fails. It does not matter if you fail the timer, the mission completes successfully regardless.
Time limit: 1 Minute & Line up parasites & Reroute electric
You have to line up one more time with the parasites. But before you do that, interact with the wheel on the pipe next to the patient.
Then grab the battery to the left of the patient and bring it to the right of the patient.
Time limit: 1 Minute & Shoot through the parasites
Now shoot through the parasites again. It does not matter if you fail the timer, the mission completes successfully regardless.
This finishes Doc of the Bay side mission in Borderlands 4.
For all other Side Mission Walkthroughs, check out our complete Borderlands 4 Side Missions Walkthrough.













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