One Hydra Head at a time (слэш)

After one too many relapses and wipes in the early 1950’s, Zola develops Project Wings in hopes of forever subduing Winter Soldier’s original personality and memories using very specific conditioning methods. Ten years later the Winter Soldier is the most efficient weapon Hydra owns and Project Wings is declared a success, its files archived away, forgotten.
Until decades later when Hydra makes the ultimate mistake - orders the Winter Soldier to kill Captain America, which unbeknownst to them triggers Project Wings’s protocols. Now, they have a rogue Asset on the loose and its newest mission is to execute some major Hydra ass-whooping.
And the fact the Asset chooses Tony Stark as his new Handler doesn’t help Hydra’s dilemma one bit.
OR
Bucky embarks on a Hydra killing spree in order to regain his lost memories. The Soldier is excited to have a new mission. And Tony Stark has no idea why is a Hydra assassin casually walking into his workshop asking for orders this early in the morning.