I think it still fits in HiH. 1) DAO, though manipulated, joins the rebellion for the sake of Lucilius, and we know how salty Sandy can be about him. 2) There is a clone, in fact.She only got the order wrong.
On a slightly related note, I still need Azazel to finish the set.
You must allow me to join you on your journey.My name is Olivia. It is a pleasure to meet you.
Olivia joined your party!!
This, too, is for his sake... I must take care not to be found out.A-Azazel!!?Why is he on this ship...?We got a new crewmate!Hoh?And he's really friendly with them!?Hello there.Y-Yes, likewise...Luci...No, not quite. A clone...? It doesn't seem he's realized my true identi--LucioooooooIt's overrrr!Hie!You must be the new crewmate. Pleased to have you.The (current) supreme primarch!!