Variable Removal

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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 walkthroughEdit

Railroad radiant quest: Variable Removal
Speak to Predictive Analytic Machine.
Accept the mission.
Head to the designated location.
Kill the courser.
Report to Predictive Analytic Machine.
Reward: 300 XP
270 caps

Detailed walkthroughEdit

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 however necessary. The only kill required to complete the quest is the Courser's, but all of the synths can be destroyed at this location without turning the Institute hostile.

2. Report back to Predictive Analytic Machine

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 locationsEdit

Quest stagesEdit

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 finishedIcon checkQuest 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 failedIcon crossQuest 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 seem to make them hostile.


  • pcIcon pc ps4Icon ps4 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]
  • pcIcon pc xboxoneIcon xboxone ps4Icon ps4 The radiant target may sometimes fail to change and can become locked into one location, i.e. only ever having the courser appear at University Point and not at any other location.[verified]
  • pcIcon pc ps4Icon ps4 If the target location is the RobCo Battlezone, the courser spawns beneath the arena and cannot be reached to complete the quest.[verified]

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