Project Vampir Sturm was a Nazi doomsday experiment created by Heinrich Himmler to create an army of vampires.
Vampir Sturm was proposed by Himmler and approved by Adolf Hitler in October 1944. Himmler dispatched a Nazi delegation lead by Ilsa Haupstein to Castle Giurescu in Romania to recruit Vladimir Giurescu into the German war effort. Giurescu personally met Hitler in December, which the meeting made Hitler to realize that having an army of such creatures would be absolutely uncontrollable. Giurescu and his brides that he had brought along were arrested and executed. However, one of Giurescu's brides, Anna, was completely drained of her blood to be use in Vampir Sturm.
The extracted vampire blood was taken to the Ritter Institute for the Mentally Unstable, the site of the project, and used initially in injecting nine handpicked members of the Schutzstaffel that were part of the Werewolf insurgency division. Unfortunately, five instantly died and the survivors were turned into imperfect, mutant vampires that were rabid and uncontrollable. The project was then changed after that it was impossible to create the army to turn the tide of the war and to be used as a final option in releasing the vampires to wreck havoc upon the world if Germany were to fall to the Allies. In January 1945, 120 of the strongest patients from the Ritter Institute were injected with the vampire blood and frozen mid-transformation in liquid nitrogen.
On April 30th, 1945, as Soviet forces reached Berlin, Hitler ordered General Frederich Manstein to unfreeze the subjects of Project Vampir Sturm. However, Manstein, who has seen the errors of the Nazis, went against the order and instead sealed the room containing the vampires, before leaving a letter explaining his decisions in the asylum's files.
In 1946, the frozen vampires were recovered by Doctor Herman von Klempt to be use in his plot to unleashing them in the heart of the United States via rocket. The plot was foiled by Trevor Bruttenholm and a small company of American and Soviet troops under the demon Varvara, and the vampires were destroyed in an ensuing explosion in von Klempt's rocket.