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Variable Removal is a Railroad radiant quest in Fallout 4. It requires the Sole Survivor to go to a random location and eliminate a courser. If left unchecked, a courser could cause a lot of damage to the Railroad's infrastructure.

Quick walkthrough

Railroad radiant quest: Variable Removal
Speak to P.A.M.
Accept the mission.
Head to the designated location.
Kill the courser.
Report to P.A.M.
Reward: 300 XP
100–300 caps

Detailed walkthrough

  1. Eliminate the courser — The Pip-Boy will have been updated with the location of the courser (they are different random locations). Travel to that location and eliminate the courser.
  2. Report back to P.A.M. — Return to P.A.M. at the Railroad HQ. She will congratulate the player character on a job well done and give bottlecaps or sometimes a weapon as a reward.

Possible locations

Quest stages

Quest stages
StageStatusDescriptionLog Entry
100 Eliminate the CourserPAM has intel on a Courser in the field. An unchecked Courser can cause tremendous damage to the Railroad. So my job is to eliminate it.
200 Report back to P.A.M.The Courser's been put down. Another grave threat to the Railroad taken care of. Now to check in with PAM.
300Quest finishedQuest completeWith that Courser taken care of, PAM doesn't have any more leads on others in field. The Railroad's a little safer. For now, at least.
9000Quest failedQuest failed


  • When initiating this quest, P.A.M.'s dialogue will differ depending on whether or not the Institute has been destroyed.
  • When the Institute is friendly to the Sole Survivor, killing the courser does not make them hostile, although it is still considered to be a murder and will be registered as such in the crime stats.
  • It is possible for this quest to point to a location in an installed add-on.
  • In Survival mode, P.A.M. states that there are three coursers to be removed, and she does not give any more quests after the third courser is killed.
  • P.A.M. can send the player to the same location multiple times.
  • Once Mass Fusion has been started, P.A.M. will not communicate with the player character, including giving rewards or acknowledging completion of the quest.


  • PCPC Playstation 4Playstation 4 Xbox OneXbox One Sometimes the quest will not be given again once completed, likely due to an error in the radiant quest system.[verified]
  • PCPC Playstation 4Playstation 4 Xbox OneXbox One If P.A.M. is reprogrammed and brought back to the Prydwen after the completion of Tactical Thinking, the quest will still be given as if you are still a member of the Railroad.[verified]
    • One can use the console command setstage 00186c79 300 to fix this.
  • PCPC Playstation 4Playstation 4 Xbox OneXbox One The radiant target may sometimes fail to change and can become locked into one location, e.g. only ever having the courser appear at University Point and not at any other location.[verified]
  • PCPC Playstation 4Playstation 4 Xbox OneXbox One If the target location is the RobCo Battlezone, the courser may spawn beneath the arena and cannot be reached to complete the quest.[verified]
    • It is possible to use the console command MoveToQuestTarget <QuestID> to teleport to the courser and then to P.A.M.
  • PCPC Playstation 4Playstation 4 Xbox OneXbox One If the quest sends the player character to ArcJet Systems before Call to Arms has been completed, the courser may spawn behind the wall of junk that blocks your path to the engine core and will be unreachable.[verified]
    • On PC, it is possible to use the tcl console command to clip into the area with the courser.