A Deathwing Companion Detachment my only be selected as part of a Detachment that includes at least one model with both the Master of the Legion and the Legiones Astartes (Dark Angels) special rules. A unit selected in this manner is considered a 'Retinue Squad' and the model with both the Master of the Legion and Legiones Astartes (Dark Angels) special rules is reffered to as the Retinue Squad's Leader for the purposes of this special rule (if the Detachment includes more than one eligible Leader then the controlling player selects one as the unit's Leader). The Retinue squad does not use up a Force Organization slot and is considered part of the same unit as the model selected as its Leader. The 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. A Deathwing Companion Detachment may not be selected as part of an army without a Leader.
A model with this special rule may issue and accept Challenges as if it had the Character type. Note that this does not allow a model with this special rule to use any other special rules associated with the Character type.
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.
Any unit that includes at least one model with this special rule ignores the effects of the Precision Strikes (X), Precision Shots (X), and Sniper special rules, and casualties from Shooting and Melee Attacks are always allocated to a model of the controlling player's choice.
All models in a unit under the effect of this Hexagrammaton Unit Sub-type gain a bonus of +1 To Hit when rolling To Hit in an assault with one of the following weapons: chainsword, force sword, power sword, Terranic greatsword, Calibanite warblade, Charnabal sabre, and Paragon blades or close combat weapons modelled as swords. In addition, a model with the Vehicle Unit Type gains a +1 bonus to the Strength of all Hits inflicted as part of a Ram Attack (up to a maximum of Strength 10).
