I was having a little trouble prestiging on MW2 and I ran into this hacker on free-for-all.
I sent him a friend request and he started hacking me.
Eventually I asked him to get me to 10th prestige lvl 70
and when he did I found that it came with all the weapons and attachments and even the titles. so here is his name.
iHak-_-host
send him a friend request and ask him to level you up.