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I've received reports that supplies have been disappearing from our supply depot at the airport. I suspect this may be an inside job.Lancer-Captain Kells

Duty or Dishonor is a Brotherhood of Steel side quest in Fallout 4.

Quick walkthroughEdit

Brotherhood of Steel side quest: Duty or Dishonor
Speak to Lancer Captain Kells.
Speak to Knight Sergeant Gavil.
Speak to Initiate Clarke.
Speak to Knight Lucia.
Speech check to convince Knight Lucia to say more.
Search for evidence on the Prydwen, specifically Knight Lucia's log.
Shadow Initiate Clarke.
Confront Initiate Clarke.
Convince Initiate Clarke to turn himself in.
Convince Initiate Clarke to leave the Brotherhood.
Kill Initiate Clarke.
(Optional) Exterminate the ghouls.
Report to Lancer Captain Kells.
Reward: 300+ XP &
T-60C legendary torso piece
OR 300+ XP & 50 caps
OR 100 caps
Leads to: A Loose End
Leading by Example

Detailed walkthroughEdit

Talking to Captain Kells will start the assignment. He will ask you to report to the logistics department and investigate a case of missing goods over the last time.

Your first contact will be Knight Sergeant Gavil, who will brusquely deny any accusations and tell you to only bother Knight Lucia and Initiate Clarke, since none of the other people in the department should be disturbed, also as the newest additions they are the most likely suspects.

You now have multiple options:

  • Talking to Clarke and Lucia and passing speech checks. If you speak to Lucia first, you will not need to speak to Clarke but if you want to hear what they both have to say, speak to Clarke first.
  • Return to the Prydwen's main deck. In the area where the personal beds with footlockers are, two of them - near the 'outgoing mail terminal' - have locked footlockers belonging to Clarke and Lucia. Inside Clarke's is a note from Lucia and a key to Lucia's footlocker, while in hers - is a holotape. There are four logs on it, but the fourth one is important. Confront Lucia and she'll ask you to tail Clarke after his shift ends to find out what's wrong.
  • Alternatively, you can search the depot room for clues, and look for the terminal next to where you met Gavil. This will also advance the quest.

Either way you end up following Clarke.

Shadowing Clarke will lead you to the Boston Airport ruins. Upon entering the ruins, you are tasked with finding Clarke. Go to the right from the elevators that requires an ID card, open the door and down the stairs and through a tunnel. In a room to the left is the body of Knight Rylan. Killing ghouls on the way to Clarke is OK. Further down the tunnel you'll be tasked with the optional quest to exterminate the ghouls. At the end where the tunnel is flooded, go up the ramp and through the stairwell/tunnel until you get to an underground parking garage. Traverse the underground parking garage until you get to a subway tunnel. Take the subway tunnel until you get to the next platform, this will lead you to a luggage terminal.

Upon entering, take the stairs down, follow this tunnel until you get to a room that Clarke is in, that's above the generator room with a bunch of ghouls. If you open the generator room and kill the ghouls Clarke will automatically become hostile forcing you to kill him. Also, if you go into the next room adjacent to the room Clarke is in without talking to him, Clarke will automatically become hostile.

The ID card is on the desk that has the [expert] terminal. You need this to open the doors and use the elevators. Another ID card is available from Clarke. If you did NOT kill the ghouls and have settled on confronting Clarke directly, you now have three options:

  • Convincing Clarke to turn himself in grants a piece of armor upon quest completion (T-60C torso with 10% AP costs in VATS reduced as well as leveled options). The optional quest objective of killing the ghouls is also automatically completed.
  • You can convince Clarke to leave the Brotherhood of Steel, after which you can either lie to Kells about the missing food or blame it on Clarke. Kells will be doubtful of your words at first, but he will be convinced after you continue with the lie. This option grants 50 caps and some experience.
  • You can outright kill Clarke, but this will yield no armor or weapon rewards, just 100 caps.

Upon completion Kells will give you one of several rewards depending on what you did with Clarke. Only by convincing the traitor to turn himself in will Kells give you the Exemplar's T-60c torso. (Note: While the armor is titled T-60c, it is leveled to the player character, meaning higher level player characters will receive T-60d, e, or f, while lower levels will receive a, b, or c.)

After the mission is complete, you can speak with Kells. Even though he states that a patrol team was sent in to clear out the ghouls, the room at the bottom of the ruins will still be populated by them. You can enter, kill, and loot to your heart's content (if Clarke turned himself in).

Companion reactionsEdit

Ask Clarke what he thinks the Sole Survivor should do with the feral ghouls.No reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralDislikesDislikeNo reactionNeutralNo reactionNeutralDislikesDislikeNo reactionNeutralDislikesDislikeDislikesDislikeDislikesDislike
Tell Clarke he did right by feeding the feral ghouls.DislikesDislikeNo reactionNeutralLikeLikeNo reactionNeutralLikeLikeLikeLikeHatesHateNo reactionNeutralDislikesDislikeDislikesDislikeNo reactionNeutralDislikesDislikeDislikesDislikeHatesHate
Tell Clarke he has to die for his actions.LikeLikeDislikesDislikeNo reactionNeutralNo reactionNeutralDislikesDislikeHatesHateLoveLoveHatesHateHatesHateLoveLoveHatesHateLikeLikeHatesHateLikeLike
Tell Clarke the ferals have to be killed because "they're monsters."LikeLikeNo reactionNeutralDislikesDislikeLoveLoveNo reactionNeutralHatesHateLoveLoveNo reactionNeutralLikeLikeLikeLikeNo reactionNeutralLikeLikeLikeLikeLikeLike
Tell Clarke the ferals must die as they may harm others.LikeLikeNo reactionNeutralLikeLikeNo reactionNeutralLikeLikeDislikesDislikeLoveLoveNo reactionNeutralLikeLikeLikeLikeNo reactionNeutralNo reactionNeutralLikeLikeNo reactionNeutral
Tel Clarke that if he felt feeding the ghouls was right, then it must be right.DislikesDislikeNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralHatesHateNo reactionNeutralDislikesDislikeDislikesDislikeNo reactionNeutralDislikesDislikeNo reactionNeutralDislikesDislike
Tell Clarke their actions will be kept secret.DislikesDislikeNo reactionNeutralLikeLikeNo reactionNeutralLoveLoveLikeLikeHatesHateNo reactionNeutralDislikesDislikeNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralDislikesDislike
Be indecisive to Clarke regarding the fate of the ferals.DislikesDislikeNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralDislikesDislikeHatesHateNo reactionNeutralDislikesDislikeDislikesDislikeNo reactionNeutralNo reactionNeutralDislikesDislikeDislikesDislike
Tell Clarke that feeding the ferals was wrong.LikeLikeNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralDislikesDislikeLoveLoveNo reactionNeutralLikeLikeLikeLikeNo reactionNeutralNo reactionNeutralLikeLikeLikeLike
Tell Clarke his actions will be reported, however , he can return in the meantime.DislikesDislikeLikeLikeLikeLikeNo reactionNeutralLikeLikeDislikesDislikeHatesHateNo reactionNeutralLikeLikeDislikesDislikeNo reactionNeutralNo reactionNeutralLikeLikeDislikesDislike
Tell Clarke the ferals must die because "that's what the Brotherhood does."No reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralDislikesDislikeHatesHateNo reactionNeutralNo reactionNeutralLikeLikeLikeLikeNo reactionNeutralNo reactionNeutralDislikesDislikeNo reactionNeutral
Promise not to tell anyone about the feralsDislikesDislikeNo reactionNeutralLikeLikeNo reactionNeutralLikeLikeLoveLoveHatesHateNo reactionNeutralDislikesDislikeDislikesDislikeNo reactionNeutralDislikesDislikeNo reactionNeutralDislikesDislike
Confirm that the Sole Survivor was following ClarkeDislikesDislikeNo reactionNeutralNo reactionNeutralNo reactionNeutralDislikesDislikeNo reactionNeutralDislikesDislikeNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralLikeLikeNo reactionNeutralNo reactionNeutral
Tell Clarke all ghouls must be killed.DislikesDislikeDislikesDislikeDislikesDislikeNo reactionNeutralHatesHateHatesHateDislikesDislikeHatesHateHatesHateLikeLikeHatesHateLikeLikeLikeLikeNo reactionNeutral
Ask Clarke if it would matter if all ghouls are killed, if his friend was feral.No reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralLikeLikeLikeLikeNo reactionNeutralNo reactionNeutralDislikesDislikeNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutral
Tell Clarke that one doesn't know if all ghouls should be killed.No reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutralDislikesDislikeNo reactionNeutralDislikesDislikeDislikesDislikeDislikesDislikeDislikesDislikeNo reactionNeutralNo reactionNeutralDislikesDislike
Tell Clarke all ghouls shoudn't be killed.LikeLikeLikeLikeLikeLikeNo reactionNeutralLikeLikeLoveLoveLikeLikeLikeLikeLikeLikeDislikesDislikeLikeLikeDislikesDislikeNo reactionNeutralDislikesDislike
Convince Clarke to turn himself inDislikesDislikeNo reactionNeutralDislikesDislikeNo reactionNeutralDislikesDislikeNo reactionNeutralDislikesDislikeNo reactionNeutralDislikesDislikeDislikesDislikeNo reactionNeutralNo reactionNeutralNo reactionNeutralNo reactionNeutral

Quest stagesEdit

StageStatusDescriptionLog Entry
15 Speak to Captain KellsCaptain Kells said he has another mission for me. I should report to him for my new orders.
30 Speak to Knight-Sergeant GavilCaptain Kells ordered me to investigate some missing supplies at the airport. I should report to Knight Sergeant Gavil for more information.
50 Question Knight LuciaI should begin my investigation into the missing supplies by questioning the soldiers who work in the supply depot.
51 Question Initiate Clarke
70 Speak to Knight-Sergeant GavilI questioned the soldiers in the supply depot, but I haven't found any leads on the missing supplies. I should ask Sergeant Gavil if he has any other advice.
75 Search for EvidenceI questioned the soldiers in the supply depot, but I haven't found any leads on the missing supplies. I should look for evidence that might be related to the thefts.
80 Read Knight Lucia's log
90 Confront Knight LuciaWhile investigating the missing supplies, I found evidence that Initiate Clarke has been acting suspiciously. I should question Knight Lucia about his behavior.
150 Shadow Initiate ClarkeWhile investigating the missing supplies, I learned that Initiate Clarke has been behaving suspiciously. I should follow him and see if his actions are somehow related to the thefts.
200 Find Initiate ClarkeWhile investigating the missing supplies, I followed Initiate Clarke into the ruins beneath the airport terminal. What could he be doing down here?
220 Optional: Exterminate the GhoulsWhile investigating the missing supplies, I followed Initiate Clarke into the ghoul-infested ruins beneath the airport terminal. I need to confront him and demand some answers.
240 Confront Initiate Clarke
350 Report to Captain KellsInitiate Clarke was stealing rations to feed the ghouls in the airport ruins. I agreed to lie to Captain Kells in order to protect him. OR
Initiate Clarke was stealing rations to feed the ghouls in the airport ruins. I need to report his actions to Captain Kells. OR
Initiate Clarke was stealing rations to feed the ghouls in the airport ruins. I convinced him to flee to avoid punishment, but I still need to report back to the Captain. OR
Initiate Clarke was stealing rations to feed the ghouls in the airport ruins. I convinced him that he needed to turn himself in. OR
Initiate Clarke was stealing rations to feed the ghouls in the airport ruins. I decided to execute him for his crime.
380 Kill Initiate ClarkInitiate Clarke was stealing rations to feed the ghouls in the airport ruins, putting the entire base in danger. He has to pay for his crime.
385 Initiate Clarke was stealing rations to feed the ghouls in the airport ruins. I need to report his death to Captain Kells.
430Quest finishedIcon checkQuest completeInitiate Clarke was stealing rations from the Brotherhood to feed a den of feral ghouls in the ruins beneath the airport.
499Quest failedIcon crossQuest failed


  • The elevator shaft to the left of the entrance has an accessible door on the next floor up, which, if accessed by power armor jetpack, leads to an out-of-bounds state. This can be exploited to access Clarke directly: landing on the lowest level of rubble, next to the green steamer trunk, directly behind the elevator shafts, will put the player character beyond Clarke's feral observation room, allowing progress on the quest in a fraction of the time, without encountering a single feral ghoul.
  • Clarke's reaction varies when the player character kills the feral ghouls:
    • In the room with Clarke there is an Expert terminal. If you use it to activate protectrons, Clarke will become hostile since the robots will attack the ghouls.
    • If the player character manages to convince Clarke to stand down, via persuasion or presenting him Knight Rylan's holotag, he will not become hostile if the player character chooses to exterminate the feral ghouls.
    • If the feral ghouls are killed by your companion after Clarke is convinced to leave or turn himself in, he will become hostile towards the player character if he sees them die. He does not leave the room till after quest completion.
  • Entering the Boston Airport ruins with a power armor targeting HUD mod will automatically update the quest to kill Clarke, causing him to become hostile and attack the player character on sight. He will also become hostile if you equip the power armor helmet, with the mod, after convincing him to turn himself in, if you are still in the building.
    • Clarke may also become hostile if the player character is under the effect of Berry Mentats (highlights living targets).
  • If the quest Tactical Thinking is started, then Clarke will make a briefing on it first (which will make the Railroad hostile to the player character), and then will talk about Kells and finish Duty or Dishonor.
  • If you convince Initiate Clarke to turn himself in, he will be found in the lockup at Cambridge Police Station. The lockup terminal will also be updated with a record showing he has been incarcerated for 'Larceny, Dereliction, Aiding the Enemy'.
  • Once stage 380 ("Kill Initiate Clark") is set, there appears to be no way to ever speak to Initiate Clarke, and thus no way to ever complete the quest without fail. Even resetting the quest will immediately result in stage 380 when starting.
  • Entering the airport ruins, and executing the optional quest to exterminate the ghouls before interrogating Initiate Clarke will result in Clarke has turning hostile towards the Sole Survivor and conversation is not possible anymore. After this point when encountering Clarke, the only choices are to eliminate him despite the Brotherhood of Steel consequences (turns hostile), or simply flee the area. The quest can not continue until Clarke is killed (fail).
  • Should the player character explore the airport before the completion of Reunions and the arrival of the Brotherhood, it is possible to enter the ruined portion of the airport via an elevator in the parking garage on the surface, east across the street from the workshop area. This allows the player character to access the underground half of the garage and the hallways leading to the entrance used by Clarke to enter the building. However, the hallway leading to to the subway portion of the ruins is blocked off, making it impossible to explore and clear the entire area before the player character begins Duty or Dishonor.


  • pcIcon pc ps4Icon ps4 xboxoneIcon xboxone If Clarke spots you he may get stuck in an infinite loop of going inside and back outside again. If you have a follower, this can be fixed by ordering them to wait elsewhere, which should trigger Clarke to run. You can also run ahead and hide in the bushes by the broken down plane and he will continue his walk.[verified]
  • pcIcon pc ps4Icon ps4 xboxoneIcon xboxone If you enter the underground Boston Airport ruins for the first time while wearing power armor equipped with the Targeting HUD mod or use Berry Mentats while inside, the quest will glitch. Clarke will not initiate conversation as he is supposed to and will always be hostile. Reloading to a previous save and entering without the Targeting HUD equipped prevents this issue. However, equipping the mod or using Berry Mentats will reactivate the bug.[verified]
    • ps4Icon ps4 If Clarke is hostile, it is still possible to progress through the entire conversation by repeatedly using Pax syringe on him. Unfortunately, even if he is convinced to turn himself in in this manner, the quest will not advance beyond 'Kill Initiate Clarke'.
  • xboxoneIcon xboxone When you shadow Initiate Clarke he does not proceed any further. If one kills him by placing a live grenade in his inventory then the quest icon still appears above his corpse as if he is alive, but you can loot the key to the Boston Airport ruins and get an update telling you to kill Initiate Clarke, however this does not fix the quest as Initiate Clarke is already a corpse and therefore the player character is unable to kill him again.[verified]
  • pcIcon pc If the Sole Survivor killed the ghouls before speaking to Captain Kells and thus entering the Boston Airport ruins before getting Duty or Dishonor, and thus setting stage 380 "Kill Initiate Clarke:" after leaving the Airport Ruins there is no way to return to where Clarke is (behind the entry door in the ruins) after speaking with Captain Kells, without console commands, as the door is locked and can only be opened with a key from Clarke. And Clarke will not exit the ruins. Clarke will not appear in the game until after speaking with Captain Kells. [verified]
  • pcIcon pc If the Sole Survivor has found out the evidence of From Lucia note but did not confront her before proceeding to shadow Clarke and instead do it after, the quest marker 'Confront Lucia' will be stuck on Lucia, and the Sole Survivor won't be able to trigger the quest dialogue with her. However, when the Sole Survivor reports to Captain Kells the quest marker will automatically be marked as 'Completed'.[verified]
  • pcIcon pc xboxoneIcon xboxone If the Sole Survivor has already completed the main quest for a different faction, destroyed the Prydwen, and then uses a jetpack on the elevator to reach the second floor door and the out of bounds area, they can get the card key off the desk and open the door to the reactor room. It will start the "Duty or Dishonor" quest at the "Kill Initiate Clarke" stage and will not be able to be completed. [verified]