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
Website that has all of the titles and how you get them is at the following website: http://callofduty.wikia.com/wiki/Callsigns/Titles
challenge lobby
2 Call of Duty titles have been released for the original Xbox. They are Call of Duty: Finest Hour and Call of Duty 2: Big Red One.8 Call of Duty titles have been released for the Xbox 360. They are Call of Duty Classic, Call of Duty 2, Call of Duty 3, Call of Duty 4: Modern Warfare, Call of Duty: World at War, Call of Duty: Modern Warfare 2, Call of Duty: Black Ops and Call of Duty: Modern Warfare 3.(This information is as of 18 September 2012)
Your face thats the answer
2 or more
well call of duty and modern warfare are the same it is called Call of Duty: Modern warfare and then came call of duty: modern warfare 2
The first game released November 2007 as Call of Duty 4 Modern Warfare and new Modern Warfare series games titles have been released every 2 years since
Modern Warfare 3 is not available on the Vita and there are no plans to bring it to the Vita. Activision has said that there may be future Call of Duty titles available on the Vita.
Call of Duty classic Call of Duty 4 Modern Warfare Call of Duty World at War Call of Duty Modern Warfare 2 call of duty black ops call of duty modern warfare 3
Call of Duty Modern Warfare came before Call of Duty Modern Warfare 2
"Call of Duty 6" "MW2" "Modern Warfare"
"Call of Duty 6" "MW2" "Modern Warfare"
By completing challenges or raising in rank, same for emblems