Tony was the Alpha werewolf, Steve was kind of a hybrid? I remember Tony saying something about how at least Steve never had to worry bout changing and Steve responding with how it just meant he didn't fit in as either a human or a wolf.
I know that's not much to go on. :x I'm sorry.
Also, that's the specific one I'm looking for, but I love werewolf fics, so if y'all have any fic recs where the Avengers are werewolves would be awesome.