Be Like Marty

Be Like Marty is an achievement in Halo 3: ODST. It is awarded for finishing an entire round on Firefight without killing an enemy. It is worth 10 Gamerpoints. Its picture envoles a 1960's peace medal.

This achievement can be obtained simply by using two controllers and leaving one ODST in a spawn zone, while you do the work on another controller.

Trivia

 * The name of the achievement is a reference to Martin "Marty" O'Donnell, the musical composer for the original Halo trilogy and Halo 3: ODST. This achievement was confirmed in a comment in the 7/7/09 Bungie Podcast, presumably along with the rest of the leaked list.