"Sasuke nodded faintly. If Naruto was aware of his action then they could fight together, and together they weren't going to be so easily held off."

Action should be actions, other then then the other previously mentioned mistakes tis all good grammar/spelling wise.

other then that.... O.M.F.G!! i do believe i've read this twice and i'm still incoherant! excellent work does not even begin to descibe it!