When rolling To Hit for a model with this special rule as part of an attack with a weapon that has the Melee type on any turn in which they are part of a successful Charge against an enemy unit, add +1 to the result of the roll if the enemy unit targeted by the attack has already been the target of a another friendly unit composed entirely of models with the Legiones Astartes (Ultramarines) special rule in the preceding Shooting phase.
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.