Icon Railroad quest
奖励300+ XP
100–300 caps
base id00186c79

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编辑

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
100–300 caps

Detailed walkthrough编辑

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 locations编辑

Quest stages编辑

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.
300Icon 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.
9000Icon 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 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.


  • Sometimes the quest will not be given again once completed, likely due to an error in the radiant quest system.[已核实]
  • 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.[已核实]
    • One can use the console command setstage 00186c79 300 to fix this.
  • 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.[已核实]
  • If the target location is the RobCo Battlezone, the courser may spawn beneath the arena and cannot be reached to complete the quest.[已核实]
    • It is possible to use the console command MoveToQuestTarget <QuestID> to teleport to the Courser and then to P.A.M.

Template:Navbox quests FO4

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