The other part, I think, being that most WoD players expect a more social game than "you can't stay in one place more than a few days or talk to anyone but your party more than once or twice*".
*(May be slightly exaggerated, but then it usually is when described.)
Sounds like Leviathan: the Tempest. Which I have never played, so I don't know how accurate that is, but I've seen it described a lot like that by fans.
There's a disproportionately popular (and good) book with all that: Equinox Road.
You could even play up the whole "in the blood" aspect of Leviathan ... it wouldn't be hard to make them seem like cousins of Vamps, they share enough conceptual space. I think.
[quote="SiuiS"]It's like changeling. Killing is like, T5? Killing a human is T4.[quote]
That seems reasonable. There are plenty of non-humans out there for T5.