I find myself wanting to scream "No Guy! Don't do it!" since it surely won't work. Madara will only be defeated by Naruto's sage jutsu. And since Sasuke is getting Hashi's cells from Kabuto, he's going to unlock the Rinnegan, so he'll be capable of fighting Madara too. Guy shouldn't throw his life away.
I laughed at Karin calling Kabuto a "fcking nerd" and I laughed even harder at Guy asking Lee where Tenten was.