I like these, they're giving off a heavy Project Vampyr Sturm vibe to me.
For anyone not in the know, Project Vampyr Sturm was, the universe of the Hellboy comic books, a Nazi initiative to create a homegrown vampire army by infusing "undesirables" (in the comic book they used the patients from a hospital for the disabled) with blood extracted from a pure vampire. The resulting creatures were vicious, and malformed, retaining little of their past selves. Luckily the psuedo-vampires proved hard to control and the project was put on ice, before eventually being discovered and subsequently destroyed by the then fledgling Bureau for Paranormal Research and Defense in the days following the war's end.