A unit that includes any models with this special rule may only be joined by a Legion Centurion with the Legiones Consularis: Stormseer upgrade or a Legion Centurion with the Legiones Consularis: Moritat upgrade. Note that Legion Techmarines and Legion Apothecaries may not be assigned to a unit with this special rule unless they also have this special rule.
A Dark Sons of Death Squad may be selected as a Retinue Squad in a Detachment that includes a Legion Centurion with the Legiones Consularis: Stormseer upgrade and the Legiones Astartes (White Scars) special rules, instead of as an Elites choice. A unit selected as a ‘Retinue Squad’ must have one Legion Centurion with the Legiones Consularis: Stormseer upgrade and the Legiones Astartes (White Scars) special rules from the same Detachment selected by the controlling player as the Dark Sons of Death Squad’s Leader for the purposes of this special rule. A Dark Sons of Death 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 Dark Sons of Death 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.
A unit with at least one model with this special rule gains the Fleet (2) and Rage (2) special rules for the duration of the current Assault phase when attempting a Charge against an enemy unit that they outnumber at the point that the Charge is declared.
When a unit that contains at least one model with this special rule takes Morale checks or Pinning tests, the unit ignore any negative Leadership modifiers. If a unit is both Fearless and Stubborn, the unit uses the rules for Fearless instead.
A unit composed entirely of models with this special rule gains a bonus to all Run moves, any distance moved as part of a Reaction and as a modifier to all rolls made to determine Charge Distances equal to the value in brackets listed after the special rule. For example, a unit composed entirely of models with the Fleet (2) special rule would add +2 to all Run moves it makes, +2 to all distances moved as part of a Reaction and add a +2 modifier to any Charge Moves made. If a unit is composed entirely of models with this special rule, but the models have different versions of this special rule, then the unit must use the lowest Fleet value included in the unit (for example, a unit of ten models in which nine models have Fleet (2) and one model has Fleet (4) would use the Fleet (2) special rule).
In a turn in which a model with this special rule Charges into combat, it gains a number of Attacks equal to the value of X for Charging, rather than +1. A model that has made a Disordered Charge that turn receives no benefit from Rage (see page 182).
