Hello!

I've recently began playing my first play through as a vampire hunter, but I can't help but notice none of the quest achievements have anything to do with vampire hunters?

I think all the quest achievements from this DLC are only for the people who choose vampire?

Correct me if I'm wrong!

Either side you chose, you get the same quest achievements. Only one quest achievement is a side quest.

Oh really? I guess I haven't played as much as I thought than! Thank you. And which quest is the side quest if I may ask?

Lost to the Ages.