The Replicated Man

 is a Fallout 3 quest. It is also an Xbox 360 achievement.

Objectives and walkthrough
The quest is given to you in Rivet City by Dr. Zimmer, who asks you to track down an android that has escaped. The android has gone sentient and independent and does not wish to return. Talking to Pinkerton, the player will find out the android's name is Harkness, he is from the Commonwealth and has undergone facial reconstructive surgery and memory modification at the hands of Pinkerton. Harkness now works as the security officer in Rivet City.

The player has the option to give Harkness his freedom as an android, leave him in his illusion that he's human or inform Dr. Zimmer.