Variable Removal

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.

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.

Bugs

 * Sometimes the quest will not be given again once completed, likely due to an error in the radiant quest system.
 * 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.
 * One can use the console command 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.
 * If the target location is the RobCo Battlezone, the courser may spawn beneath the arena and cannot be reached to complete the quest.
 * It is possible to use the console command to teleport to the courser and then to P.A.M.
 * 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.
 * On PC, it is possible to use the console command to clip into the area with the courser.