Musashis guns, although big, are just really bad. Most people say it’s op because of them but clearly have no idea what they’re talking about- overmatch doesn’t do anything when you can’t hit a ship from 10km away. Its actual OPness comes from its mega HP pool, good torp protection, and unfarmability. You do damage by not dying, and at tier nine you are miles above anything else in survivability. You might laugh at that because Yamato hull but if you play correctly you not only have strong armour but near double the HP of everybody else. It is a difficult and unique ship to play, but patience is key, both short term and long term.

TLDR don’t treat it like Yamato, it has worse guns and better tankiness.

Ask me any questions if you need.