You unlock it by leveling up to Prestige Lvl. 3.
Chat with our AI personalities
you have to redeem 50 of your teammates
7th presitge
get 50 silenced weapon kills after you prestige
you have to be prestige 8 rank 2 to get the title i know because i have it
Challenge: "Free-for-all Victor: I" - Place first, second or third in 3 Free-for-all matches. http://callofduty.wikia.com/wiki/Callsigns For all Titles and Emblems.