Challenge: "Master Chef I" - Kill 5 enemies with cooked grenades.
Here is a site where you can find more Modern Warfare 2 titles:
http://callofduty.wikia.com/wiki/Callsigns/Titles
Heres one for emblems:
http://callofduty.wikia.com/wiki/Callsigns/Emblems
Unlock the challenges for them.
cmplete challanges
Like with any gun title, you must unlock all the attachments for it.
To unlock 'High Command' title reach level 45 first prestige.
You unlock it by leveling up to Prestige Lvl. 3.
Become the last man standing in a game of Search and Destroy.
You need to kill 5 enemies with car explosions.
modern warfare 2
when you unlock the humiliation catagoritory in finishers its the ouch achevement its a direct impact kill with the underslung grenade launcher
You just got the speed demon title? Oh brother!
Yes the Full title is Call of Duty Modern Warfare 2 and it is often called MW2 or Modern Warfare 2
It is either, live for five straight minutes, or go an entire match with zero deaths.