The Lucifer Blacks were rare in the time of the Heresy.
These Stormtroopers will see dual duty for my Pre-Heresy Imperial Army(Vostroyans) and
If my Blood Pact Army needs a second squad of Stormtroops they will be thrown in the mix as 40k Lucifers(Yes I think they are still around)
I used dark greys for the cloth and glossy black for the armor plate.
I freehand a pentagram for the badge, fitting for a Lucifer I think.