Chieftain Retinue A Chieftain Squad in a Detachment that includes at least one model with both the Master of the Legion and Legiones Astartes (Sons of Horus) special rules may be selected as a Retinue Squad instead of as an HQ choice. The model with both the Master of the Legion and Legiones Astartes (Sons of Horus) special rules is referred to as the Retinue Squad’s Leader for the purposes of this special rule (if the Detachment includes more than one model with both the Master of the Legion and Legiones Astartes (Sons of Horus) special rules then the controlling player selects one as the unit’s Leader). A Chieftain Squad selected as a Retinue Squad does not use up a Force Organisation slot and is considered part of the same unit as the model selected as its Leader. A Chieftain Squad selected as a Retinue Squad must be deployed with the model selected as its Leader deployed as part of the unit and the Leader may not voluntarily leave the Retinue Squad during play.
Relentless Relentless models can shoot with Heavy or Ordnance weapons, counting as Stationary, even if they moved in the previous Movement phase. They are also allowed to Charge in the same turn they fire Heavy, Ordnance, or Rapid Fire weapons.
Legiones Astartes (Sons of Horus) Merciless Fighters: During a turn in which a unit made up entirely of models with the Legiones Astartes (Sons of Horus) special rule successfully charges, or are successfully Charged, the Strength of all Melee attacks made against any model in that unit that does not have the Vehicle unit type suffer a modifier of -1. Models with the Vehicle Unit type and this special rule instead inflict an additional 3 Hits (for a total of 1D6+3 Hits, or 2D6+3 if the Vehicle has the Super-heavy Sub-type) on unitscomposed of models that do not have the vehicle Unit Type when conducting a Ramming Attack.