For everyone saying Naruto would be able to solo...
Claiming Naruto could solo both Kakashi and Guy together only with KCM is so unrealistic... Guy with his Seventh Gate & Kakashi with Kamui together would over-occupy Naruto. Naruto may have the speed to dodge Kamui, but if he tries to approach both Guy & Kakashi (I am quite sure Seventh Gate Guy would be more than enough to fully occupy Naruto), considering Kakashis intellect in battle, Naruto would lose pretty badly. He would definitely need Bee to stabilize the occupations of the tag-team battle...
Even though Naruto (KCM) would make the main weight in winning this battle, assistance of Bee is necessary.