Heretic Astartes vary in appearance, combat doctrine and tactics, depending on which Traitor Legion or Renegade warband they belong to, and which of the Dark Gods they worship – if any. Cruel, devious and embittered, while the twisted warriors of a Legionary kill team may share a common goal, they are just as likely to have completely different – or even mutually exclusive – agendas. Because of this, such teams are naturally suited to unconventional warfare where they can use their immense physical and mental strength to ensure individual victory in battle.