Overachiever

Overachiever is an achievement in Halo: Spartan Assault, exclusive only to the Xbox 360 and Xbox One versions. It was released along six other new achievements in December 2013. The achievement is awarded for earning all co-op medals at least once. It is worth 50 Gamerpoints on the Xbox 360 and 100 Gamerpoints on the Xbox One. It is represented by a circle with a medal inside it.