|
You're confused about the rules. There is no more "one FOC, one allied detachment" rule. Armies are simply composed of detachments (CAD, allied, formations, etc), one of which contains your warlord and is labeled your primary detachment. The "allied detachment" is just one of these types, and has a rule that it can't be your primary detachment or have the same faction as your primary detachment. But you are free to take other combinations: an IG CAD and a DKoK death rider detachment, an IG formation and a Tau CAD and a C:SM formation, three IG CADs and a Tyranids allied detachment, etc.
|