Sacred Icon (achievement)

Were you looking for the Halo 2 level, Sacred Icon (Level), or the Activation Index?

Sacred Icon is an achievement in Halo 2 Vista, and Halo: The Master Chief Collection. In the PC game it is worth 30 gamerpoints and is unlocked by beating Sacred Icon on Normal, Heroic, or Legendary. In The Master Chief Collection it is only worth 10 gamerpoints, though it can also be unlocked on Easy.

In the PC game it is represented by the Activation index that was recovered by the Arbiter during the level. In The Master Chief Collection it is represented by a screenshot of first room of the level.