Obtained: Christina Morales in McCarran.
Speak with Private Morales at the entrance to MacCarran's dormitories to learn more about her deceased husband (Image 1). Exit the hangar and go near where the ranger Morales fell (Picture 2). Do not teleport directly to Repconn headquarters or you will be immediately attacked. North of the place where the body is, talk with the soldiers on patrol to tell them that you are going to recover the body (Picture 3).
Now move towards the corpse and eliminate the few raiders on the roofs (Picture 4), you can then approach the corpse of Morales located in the middle of the three buildings (Picture 5). Lift the ranger's body and bring it back to the soldiers you met earlier (Picture 6). Finally, return to Christina in MacCarran to complete this quest.