If there the Magus and or Patriarchs are killed then all remaining Cult members left on the battlefield must pass a Leadership test immediately or become broken. Those who pass the test become subject to Frenzy for the rest of the game
Crew in vehicles that fail the Leadership test abandon their vehicle and flee 2D6" on foot. If they rally later they can return to theri vehicles.
Note this test only happens if the leaders are KILLED. It is not taken if they are incapacitated, removed from the table, webbed, graviton gunned etc.
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