[@Wraithblade6] THe bat's purpose is for daytime/sunlight travel. We also established that vampire's have an ability to be rather charming/manipulative. It's a more subtle addition to their personal abilities rather than them getting mind control or something really powerful. The focus is far more on the schools of studies. There are greater vampires, and THE vampire (vlad/dracula) does exist in this universe, and they get massively more power, but are far to dangerous to trust (and way too much for player character. All the characters are meant to show the average of a magic user at least for the start.)

Also one weakness they forgot is that I do enforce arthimomania. Vampires are deeply compelled to counter small things when they are scattered on the ground. IT's actually a part of old vampire myths that you can delay them by throwing grain or salt on the ground and they have to count every last bit of it. Basically you go nuts at beaches.

EDIT: as for other regions of vampires I'd need some references on other myths about vampire to make that call. I'm not gonna just say SA vampires get X ability while Asian vampires get Y ability because I say son.