Can I please get some help for Naruto clash of ninjas 3 revolution for the wii?

Im trying to get Anbu Kakashi, and they say that bạn have to do 40% of kakashi's missions and 20% of every other characters missions. (One of the missions that I did for Kakashi was the S rank mission which bạn are supposed to do) I played the S rank mission again, beat guy, and I didnt fight Anbu Kakashi. I have already beaten guy 3 times and it wont let me battle Anbu Kakashi. Can someone please help me? Thanks.