Friendly KILL TEAM units with this ability have the following abilities:
Furor Tactics
If the devastator doctrine is active for your unit, your unit's attacks have .
Malleus Tactics
If the tactical doctrine is active for your unit, your unit's attacks have .
Purgatus Tactics
If the assault doctrine is active for your unit, your unit's attacks that target an enemy unit within 9" of this unit have .
DEATHWATCH ALLIES
YOU CAN INCLUDE DEATHWATCH units in your army, even though they do not have the same Chapter faction keyword as other units in your army. The combined points value of such units cannot exceed 500 points.
When mustering your army, unless otherwise stated, you cannot select a DEATHWATCH model to be your WARLORD. In addition KILL TEAM units can only contain enhancements taken from this detachment.