Treyarch is the companies name for the developer.
the name IS call of duty 3
There is no Call of Duty 7 Call of Duty Black Ops is Call of Black Ops not some name invented by someone before the game was announced, The next release by Treyarch will not be Call of Duty 9 and Blacks Ops has to do with Black Missions or Operations that are secret and "in the dark"
Actually this is wrong call of duty 3 has no name and Big Red One is call of duty 2
Just call of duty 2
Just Call Of Duty
Call of Duty: Modern Warfare 2
There never was a Call of Duty 5 (Correct name: Call of Duty World at War) or a Call of Duty 6 (Correct name: Call of Duty Modern Warfare 2). The newest Call of Duty that has been released was Call of Duty Black Ops (Called Call of Duty 7 inaccurately) Call of Duty Modern Warfare 3 or COD 8 is scheduled for release in November 2011 if it is not delayed or released under a new title.
it is called Call of Duty Black Ops.
The official name is Call of Duty Modern Warfare 2 and the unofficial name is COD MW2. They stopped the number system with Call of Duty 4 Modern Warfare
but
Call Of Duty 6: The Last ChapterThe question's game title was changed from COD 6 to the 6th game in the Call of Duty seriesNo the name was Call of Duty Modern Warfare 2. Call of Duty 6 has never been used as a name of the game and has only been used as slang by the users or before the name was known. More knowledgeable players refer to this game as MW2 when they do not want to write out the complete name. The Call of Duty game before this games release was Call of Duty World at War and Call of Duty 5 is slang for both Call of Duty World at War and Call of Duty World at War Final Fronts (PS2) More knowledgeable players refer to these games as WAW and WAW ff when they don't want to write out the complete name