Call of Duty campaign completion data has shown that many players finish less than half the story,
A report from TrueAchievements has revealed that, on Microsoft platforms, Call of Duty players have a low ‘Story Participation Average’.
This is defined as “the average percentage of unlocked story-line achievements for gamers that have started the game”.
Of course, these statistics must be taken with a pinch of salt, as achievement systems in the 13 games studied operate very differently, especially in earlier titles where the focus was levied on the single-player campaign. They also fail to take into account Steam or PSN trophies.