If you follow the main story, you will unlock a fast travel point called "OCI Upper Exterior". From there, navigate to the south east around some buildings until you reach an elevator. Take the elevator down, and to your immediate right will be a marauder strong hold. While here, there is a marauder (Charles from Accounting) wearing a defaced Spacers Choice mask, and is holding the Special Delivery weapon needed for another achievement. In the back of the strong hold, past a wrecked ship, there is an alcove with a canid eating a corpse. That corpse is Lucky Montoya.