Tsantsa

Tsantsa is an achievement in Halo: Combat Evolved Anniversary. It is awarded for completing any level with Iron and two other skulls active on Heroic difficulty or higher. It is represented by a modified version of the Legendary difficulty shield - the combat knives are replaced with shotguns, the skull is a human one, its eye sockets glows red, and "3" is emblazoned on its forehead.

The Achievement is worth 50 Gamerpoints.

Trivia
In Shuar, Tsantsa means "shrunken head," referring to the skulls required in the achievement.