Targeted for Annihilation At the start of the game, before deployment, nominate one unit in the enemy army. Units in this Formation have the Hatred special rule when making attacks against the nominated unit. In addition, units from this Formation can make a shooting attack against the nominated unit immediately after they deploy by Deep Strike, if it is within range and line of sight. This does not stop the unit from shooting again later in the same turn, either at the same or a different target.
Target Updated If the enemy unit nominated for annihilation (see above) is completely destroyed, you can immediately pick a new enemy unit as a replacement target. The Targeted for Annihilation rules apply to the new unit from then on. If the new unit is also destroyed, pick another new unit, and so on.