Super Soldier of a Different Breed

Co-written with DecedentofGallifrey. SHIELD had been working on synthesizing another, more advanced form of the super-soldier serum. What if Hydra had gotten hold of one of these such soldiers while the other was taken under the director's wing? Set during The Winter Soldier. We own nothing, as usual. Consider this disclaimed. Cap/OC. Winter/OC. Now one-shot style b/c we're lazy.