Bison, cap's tough and his sheild slinging is one thing, but Bison is an entirely different animal. I doubt that caps sheild would even affect bison since Bison can take a full clip of bullets and just pushed them out of their indents with his psycho power. Bison can also teleport (or move so fast it seems like he can). Bison can hit cap 20 different ways without even having to make bodily contact. Cap's great and I give him all the credit in the world but here he's sorely outclassed. besides if bison attacks using his psycho crusher (not that he would even need to) cap can't even defend himself against it or hurt bison while Bison's using it.
doesn't matter where it takes place, even if cap throws his sheild bison can send it right back with his psycho power......I haven't read the new comic yet although I do plan to, but street fighter 2 the animated movie is pretty down to earth (except where bison's concerned) and has IMO the best animated fight scenes ever produced for an anime.