Skies of Teeth
Back in the 1940's during the great depression, Vampires would have taken over the world if one scientist hadn't of found a way to use their DNA against them. Enter Cazadores, a one stop vampire killing machine that reproduces easily and quickly. They are hungry and powerful and turn the tide to the war in favor the humans that created them, but now that the war is over and there is peace and treaties and organization to ensure the latter, Vampire's and Cazadores have to find a way to live as if they weren't made to to destroy each-other.