1) What is the name of the first game in the Call of Duty series?
2) What year was Call of Duty released?
3) Which company developed the Call of Duty franchise?
4) What type of game does Call of Duty focus on?
5) How many entries are there in the Call of Duty franchise?
6) Who is the protagonist in Call of Duty Modern Warfare?
7) What type of war is the campaign in Call of Duty 4 centered around?
8) The Zombies mode originated in which installment of the series?
9) Which character is a major antagonist in Call of Duty Modern Warfare?
10) What feature was added to Call of Duty 4 that allowed players to join each other online?