Unlike most Chapter Tactics, an Angels Revenant detachment using Chapter Tactics (Angels Revenant) only has the A Legacy of Hatred special rule. However, if the enemy army contains no models chosen from Codex: Necrons, then the Angels Revenant detachment gains To the Last Breath instead of A Legacy of Hatred. A Legacy of Hatred: All models with this special rule gain the Preferred Enemy (Necrons) and Hatred (Necrons) special rules. To the Last Breath: If the detachment loses half (round down) of its units during the course of the game, then all remaining units in the detachment gain the Fearless special rule.
Units containing one or more models with the Fearless special rule automatically pass Pinning, Fear, Regroup tests and Morale checks, but cannot Go to Ground and cannot choose to fail a Morale check due to the Our Weapons Are Useless rule. If a unit has Gone to Ground and then gains the Fearless special rule, all the effects of Go to Ground are immediately cancelled.
This rule is often presented as Preferred Enemy (X) where X identifies a specific type of foe. If the special rule does not specify a type of foe, then everyone is a Preferred Enemy of the unit. A unit that contains at least one model with this special rule re-rolls failed To Hit and To Wound rolls of 1 if attacking its Preferred Enemy. This applies both to shooting and close combat attacks.
This rule is often presented as Hatred (X) where X identifies a specific type of foe. If the special rule does not specify a type of foe, then the unit has Hatred against everyone. This can refer to a Faction, or a specific unit. For example, Hatred (Orks) means any model with the Ork Faction, whilst Hatred (Big Meks) means only Big Meks. A model striking a hated foe in close combat re-rolls all failed To Hit rolls during the first round of each close combat.
