Stubborn If the majority of the models in a unit are Stubborn, the unit is always Steadfast, whether or not they have a higher Unit Strength than their enemy or are disrupted.
Zealotry Models with this rule add their combat resolution score to their Unit Strength value when determining if they are Steadfast. In addition, in the first round of combat, they always take their Break tests using 3D6, discarding the highest result.