The Priests of the Ecclesiarchy play a vita! role in the armies of the Church, imparting the holy teachings of the Emperor to their followers that they may fight with His words to inspire them.
Confessors are given carte blanche by the Ecclesiarchy to preach where they wish. They have no formal diocese, as does a Cardinal, but instead move from settlement to settlement (sometimes world to world) rooting out apostates and blasphemers, and instilling fervent faith in the locals. Confessors occasionally lead Wars of Faith, and are noted for their fiery zeal and execution of their duties (and heretics!).
Most Missionaries are part of the massive Missionarius Galaxia, although some are individuals who have privately funded their own mission stations. Missionaries bring light to the darkness, teaching the doctrines of the Ministorum to rediscovered human worlds. They are famed for their hardy endurance, no-nonsense practicality and quiet, but solid, faith.
Preachers are the lowest ranked of the priestly delegations. They are nominally under the tutelage of a Confessor or Missionary but in battle their role is to help harness the faith of the troops to smite the Emperor's foes.
Options: Priests may be given any equipment allowed by the Ministorum armoury.
Sacred Rites: Priests increase the number of Faith points available to the army for Acts of Faith. A Confessor adds +2 points, a Missionary adds +2 points and a Preacher adds +1 point.
Fanatical: A Confessor, and any unit joined by him, may re-roll any missed close combat rolls to hit in the same turn he charges into an assault.
Squad Members: You may include one Priest per unit (not including vehicles) in your army. The Priest may not leave the unit he is assigned to. No Priest may be an independent character. However many Priests you include, they only count as a single Elite selection.