MI 1 Inheritance

Fanfiction!!! Love it, embrace it, do not sell it. I do not own Marvel or its characters.
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The truth was that Tony never actually joined the dark side. He was born into it.
Howard Stark spent the majority of his post-WWII career with Arnim Zola whispering in his ear. Never directly, of course. But the seeds were planted in everything Zola touched, and by the time Howard and Maria married, he was touching almost everything that passed from SHIELD’s science division on to Howard. Captain America wasn’t there; Director Carter was mostly occupied by her vast, temperamental network of field agents and trusted Howard perhaps too much; Maria Stark had never seen HYDRA and didn’t recognize it growing in her husband’s work. And besides, the Cold War was a bad time for idealism. Howard was growing weary.
He built the atomic bomb. He built the hydrogen bomb. He built enough to destroy the world three times over, and he was never sure if he was saving the world or if his work would end it tomorrow. He became used to the idea that society was only help together by the razor wire threads of fear, lies, and catastrophic violence. It became normal, and then it became necessary, and that was when the line was crossed.
If he had ever, even once, put the name to the idea, he would have stopped everything, taken his work apart with his own hands. But he didn’t.
By the time Tony was born, HYDRA flourished in Howard Stark’s mind.
After Howard died, Tony inherited HYDRA, like he inherited everything else. He knew by then that his father was playing for the wrong team, but it didn’t seem particularly important—the wrong team was going to win. Might as well make sure they did it well.
But of course, Tony was a hypocrite even when he was trying to be evil. HYDRA Command hated it when its various underlings took action without reporting first, or disobeyed direct orders. That way lay madness, and people like Obadiah Stane—who ranked below Tony, didn’t know it, and tried to impress his superiors by giving them Stark Industries and Tony’s head.
Never turned out well.
The point is, in HYDRA, you survived by telling your superiors everything and telling your underlings nothing. But Tony had secrets galore from everyone.
The biggest secret?
Tony Stark was building a suit.