So Madara is apparently sleeping?
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I think that Madara's actually controlling the mizukage as his body lays there out of consciousness, because his mind is busy manipulating the mizukage and he could be using of the zetsu bodies... So therefore madara is the one who ordered the mist ninja to attack and surround Kakashi and Rin!! Madara knows how much Obito loves Rin so he orders the mist ninja to kill Rin, and even better Zetsu jumps in outta no where and is gonna get Obito to witness it first hand!
Then after Obito witnesses Rin's death, his only option is the moon eyes plan ... because he needs to be with Rin
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and go figure that zetsu hinted at it saying "even revive the dead"
So overall Madara and Zetsu are playing Obito... Madara is behind the Mist Ninja attacking Rin, and Zetsu fools Obito into witnessing it first hand to later awaken his ms! After Rin's death, Obito will be all for the moon eye plan to get a chance to see her again. Madara is the master manipulator!