ODST (achievement)

ODST is a Halo 4 achievement added with the Crimson Map Pack. It is awarded when the player kills an enemy player while airborne from a man cannon.

Trivia
Upon release, the achievement was glitched, allowing players to earn it through other methods. One way of obtaining it was through kills from the grave. This could be because through respawning, you are usually sent a fair distance from the site in question.