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
1. Eliminate the Courser

2. Report back to Predictive Analytic Machine

Detailed walkthrough
1. Eliminate the Courser

Your 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 you see fit. The only kill required to complete the quest is the Courser's but you can kill as many as you would like.

2. Report back to Predictive Analytic Machine

Return to P.A.M. at the Railroad HQ. She will congratulate you on a job well done and give you 270 bottlecaps.