Changes

Provided the warrior survives 4 years of ''active duty'', he undergoes the first [[Trial by Fire]], which can be anything from mere gladiatorial affairs to trial by constant combat. If the Shas'la survives his first Trial by Fire, he is promoted to the rank of Shas'ui, or Veteran. For every consecutive four years of service, the Fire Warrior undergoes another Trial. The higher one's rank within the Fire Caste, the more likely one is to be a [[Battlesuit]] pilot. Upon attaining the rank of '''"O"''', a member of the Fire Caste may be allowed to retire active duty and become an advisor to the Tau military's command structure, the [[Shas'ar'tol]]. Other than death this is the only way to leave the Tau military.