Fic the first: Steve doesn't get the serum, Hodge becomes Cap, dies in the field (supposedly), Hydra attacks the U.S. Steve ends up leading the resistance and Bucky is, I think, sent home after Azzano and becomes his second in command.
Fic the second: Steve is defrosted during the Cold War and he and the Winter Soldier are thrown together in a joint USSR/US operation. I can't remember if it's classified or a public relations stunt. (Not the 'Amnesiac Groom' fic, this is actually set during the Cold War, not present day, and I think it's gen.)
I found both of these on the Ao3. If any of you lovely people recognize either of them I will be most grateful.