Get 250 close-ranged kills using Ninja.
callofduty.wikia.com/wiki/Callsigns :D
get 50 kills with a stealth bomber, however you must have prestiged first
you unlock it by getting 50 kills with the stealth bomber. this is the Spirit 1 challenge.
Stealth
2500 Headshots ( yes i did say headshots :D ) I have it its pretty epic Xbo Live Gamer Tag: FLuX SteaLth Add me <3
Reach Prestige 1 and Level 69.
You have to kill 1000 enemies with any silenced gun
Get stabbed by someone who has that title set as his active callsign.
you have to get 250 kills with melee
No
Get to ninth prestige
ninjaa