Precision Strikes (X) If a model with this special rule, or attacking with a weapon with this special rule, rolls equal to or higher than the value in brackets when making a To Hit roll as part of a melee attack, that hit is a ‘Precision Strike’. For example, if a model with the Precision Strikes (4+) special rule rolls a 4 or higher when making a To Hit roll, then that attack is a Precision Strike.
Wounds from Precision Strikes are allocated against a model (or models) of the attacking player’s choice in the target unit, as long as that model is engaged in combat with the attacking model’s unit, rather than following the normal rules for Wound allocation.
Sudden Strike (X) In a turn in which a model with this special rule Charges into combat, it adds a bonus to its Initiative Characteristic until the end of the Assault phase. The bonus added to the model’s Initiative is equal to the value in brackets after the special rule; for example, a model with Sudden Strike (2) adds a bonus of +2 to its Initiative.
A model that has made a Disordered Charge that turn receives no benefit from Sudden Strike (X).