UNSC Do You Feel Lucky? was attacked by the forces from the Covenant ship Retribution's Thunder near Charybdis IX. It was boarded by Sangheili and Unggoy led by Thel 'Vadamee before they left and destroyed it.
- The ship was likely named in reference to a quote from the 1971 crime thriller, Dirty Harry. The protagonist of the film, Harry Calahan, informs a thug that he cannot recall if he fired 5 or 6 of the 6-shooter's bullets and tells him to ask himself, "do I feel lucky?"
- Halo: The Cole Protocol (First appearance)