Aun'el Shi'ores
The Tau Ethereal governor of Kronus and Shas'O Kais's advisor. Described as being the next generation of the Tau Ethereal caste, he is determined to restore Kronus back to the Tau Empire and feels discontent towards those who do not accept Tau ideology of the Greater Good, especially Orks and Necrons. If the Tau are attacked in their city of Tash'n, he becomes the prime target of the invading force, seeing as how his death would shatter the Tau morale. Killing him is Tau stronghold mission's final objective, after he dies, the player wins. When the invaders are successful, he and his bodyguards are killed in a hail of gunfire, where his body is recovered by an emotionally shattered O'Kais; who orders what remains of the Tau military to evacuate and return the Ethereal's body back to T'au, leaving the civilian Tau population of Asharis at the mercy of the invaders.
Read more about this topic: List Of Warhammer 40,000: Dawn Of War Characters, Tau