1. It seems the OP has been edited by the author, turns out my assumption was correct.
2. And I never said that the MC is useless in terms of hand-to-hand combat. What I have said(and rightly so) is that in terms of hand-to-hand combat, Cap has far more experience than the MC.
3. As I already mentioned Cap is primarily superior in terms of mental stats, the Spartans are noted as having increased Intelligence, Memory, and Creativity. While for Cap, all of his mental stats are increased in the same way as his physical ones. Iirc, Cap also heals faster than the MC/Spartans.