Call of duty modern warfare 2 titles?

There is a Call of Duty wikia page, google for: Modern Warfare 2 Callsign Wikia

And it should be the first result.

It has a list of all the titles and emblems, and how to get them.
here i got you a link of the full list of titles and how to get them

including what the titles mean for example FNG title means fuc*ing new guy

http://callofduty.wikia.com/wiki/Callsigns/Titles = titles

and if you need it here's the emblems

http://callofduty.wikia.com/wiki/Callsigns/Emblems