i need help with 10th prestige.

hey i need help and im desperate for the 10th prestige. and i will admit that i suck at this game sooo much!

my GT: phantomkiller97

ok add me if u can help or reply on here.
and i also dont want to host.

Xbox? I'm afraid you'll need to modify your gamesave, and you'll need a resigner to do that, and the only one there ever was is gone.