One Got Away
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One Got Away
One Got Away is an achievement in Halo: The Master Chief Collection. This achievement is obtained by viewing the Caveman during the ending cutscene of Halo 3: ODST.
During the epilogue cinematic after Coastal Highway, when Vergil lights Johnson's cigar during the interrogation, push the right thumbstick to the left on the controller and the scene will pan over to the left. You will see Edward Buck touch a Caveman similar to the ones in Halo 3's Sierra 117. He will then groom it, and appear to eat something taken from its hair; however, you will only see him raise his hand towards his mouth, as the scene will black out immediately thereafter.