@BurningColdWe've got one half-vampire. Perhaps you could be a creation of the same experiments? See Ved's CS for more info on him.
As for the vampire perspective, depending on your age, you might know that there are such things as oldbloods who are super powerful, there was a world-wide war between vampires and humans called the "nightwars" a decade ago, and vampires lost. They are now kind of spread out and hiding from hunters for the most part.
The Purge are a horde of holy zealots with lots of money and insanity who pretty much slay vampires in their sleep, so you want o avoid them. HIVE is pretty much the same thing, but they are not religious and not as crazy. Hive uses more technology to kill vampires, but they are not quite the terrorists that the Purge are. Project Freelancer is a much small group located only in the USA that seems to be a neutral party to supernaturals, and for some mysterious reason, they want to eliminate the Purge organization. Freelancer is mostly made up of humans, but they have a handful of fucked up supernaturals working for them.
If you are full vampire, you probably want to survive, or maybe you are vengeful about being turned and having your human family killed, so you want to join the humans and eliminate your own kind. Maybe you join with other vampires, and plot to regain your rightful glory, but beware the Purge.
If you are half-vampire, then a human made you, and they probably did it with the intention that you would help save humanity one day. I'd expect you to likely side with the humans, maybe be a part of Hive or freelance, or maybe even X... I completely forget what the hell X is.... Ask Shikaru.