Johann Shmidt's history is presumably similar to his Earth-616 counterpart's, before he bonded with the Venom symbiote at an unknown point in time and became the Black Skull.
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Other Personas of Johann Shmidt
Team & Affiliations
History
The Black Skull along with the Masters of Doom began attacking different locations in Washington, D.C. He targeted the Capitol Building with help from Hydra soldiers and took Congress hostage. He was opposed by Nighthawk. After Nighthawk took care of the Hydra soldiers with help from Blade the Vampire Hunter, he attacked Black Skull.