Dead orbit only has one faction ship, it's equipped on my titan and its white as well as the new monarchy one is equipped on my warlock which is red, I've never seen those black ones before

I'm not too sure that's the case, I mean It's possible in ROC strikes as a really rare drop but I would think someone would have gotten at least one of the six ships by now out of a strike, and as for Dead Orbit they only have one faction ship you can get as far as I'm aware of