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.
Use a title that is really hard to get. Such as a 2500 with the spas 12 title Thats what I have ;)
No
Get to ninth prestige
you have to get 250 kills with melee