Well I don't know. Because he didn't create zetsu until he awakened the rinnegan and that when be was very old. So hashirama and tobirama were already long.gone dead. So zetsu must of been tailing orochimaru. But with that being said. Madara would have known orochimaru n.kabuto and there...
The juubi did a move similar too this and he guarded himself with susanno. Itachi guarded this with susanno. This has no effect on madara who has perfect susanno sorry dude.
Yes I don't see why not he received training from the dragon cave. But the dragon cave is different you can absorb natural energy while moving like juugo for.instance. but kabuto needs to get out of Izanami before he can be of any help.
If hashirama was created by the mazou then he wouldn't have too eat. But hashirama is a regular human being with parents and wasnt grown from the (gedo mazou via charka) come on dude use common sense. Your logic is terrible
Well let's see because we have already seen it. Orochimaru lost too a susanno so he cannot beat it. Danzou put up a great fight thru izanagi but still lost a susanno. Kabuto fought susanno but they weren't serious in killing him. But if sasuke used his full out Susanno he would of killed kabuto...