Question: what are the order of call of duty games?
Answer:  Call of Duty (2003)
 Call of Duty: United Offensive (2004)
 Call of Duty: Finest Hour (2004)
 Call of Duty 2 (2005)
 Call of Duty 2: Big Red One (2005)
 Call of Duty 2 (Mobile) (2006)
 Call of Duty 3 (2006)
 Call of Duty 2 (Windows Mobile) (2007)