Unexpected Allies
(Rule)Description: This unit can be included in any IMPERIUM Detachment without taking up a slot, as long as every unit in your army (with the exception of those that are UNALIGNED) has the IMPERIUM keyword (and does not have the FALLEN keyword). This unit does not prevent other units from your army from benefiting from Detachment abilities (e.g. Chapter Tactics, Canticles of the Omnissiah), and does not prevent units from gaining abilities that require every model in your army to have that ability (e.g. Combat Doctrines). In a matched play game, these models are ignored for the purposes of the Battle Brothers rule (although all units from your army must still have the IMPERIUM Faction keyword).