Fight as One, to the Last Breath All Infantry units from Watch Force Artemis have the Feel No Pain (6+) special rule whilst they are within 6" of Watch Captain Artemis. In addition, Watch Sergeants Crull's Hatred special rule and Brother Galatael's Precision Strikes special rules apply to any other units from Watch Force Artemis that are within 6" of them.
Kill Team (Death Masque) You can choose to deploy Squad Crull and Squad Galatael as a single unit called a Kill Team. This counts as a single unit for all game purposes. The Kill Team cannot split up during the battle, even if a model within it has the Independant Character special rule.