kill 250 people with melee (knife, tactical knife)
Stab 250 enemies with your knife. You must have prestiged at least once to unlock this challenge.
you have to get 250 kills with melee
you have to get 250 knifing kills in one prestige.
Stab 50 enemies for Blade veteran (silver title) Stab 250 enemies for Blademaster (gold title)
do some challenges they will unlock it for you ------------------------- Completing every challenge will unlock every title.
unlock all the attachments or get 500 or more kills with it when you have prestiged
kill an enemy by starting a chain of explosives. (or enemies)
You cant ning nong
Well you can't on PS3 and Xbox 360
You have to achieve the Mastery challenge for that weapon. That is, unlocking all attachments.
Well, as you all know the 'Ta-Da!' title is VERY rare. I know how to unlock it! What you have to do is you have to kill 25 players within 5 seconds after respawning on a Tactical Insertion. That's how you unlock the 'Ta-Da!' title!
get 50 kills with a stealth bomber, however you must have prestiged first