I've heard several podcasts and individuals state that you MUST take a Tempestus command squad and at least one squad of scions if you want to field scions at all; however, reading my iBooks copy of the Militarum codex, it says you MUST take at least one squad of scions and MAY take a Tempestus command squad. Also, the codex states that the CCS can issue orders to any non-vehicle unit within 12". So, 1) am I correct in saying I can field 5-10 scions without a Tempestus command squad, and 2) can my normal CCS (not Tempestus command squad) still issue orders to that squad of scions, provided they're in range?