DEATH TO THE TRAITORS!

Use this Tactic when you choose a model from
your kill team to fight in the Fight phase. Until
the end of that phase, each time you make a hit
roll of 6+ for that model, and the target is a
HERETIC ASTARTES model, you can
immediately make an extra attack against the
same model using the same weapon. These
attacks cannot themselves generate any further
attacks.