The campaign for this edition of Modern Warfare 3 consists of a total of 14 or 15 missions, depending on whether you count the Countdown  sequence or not. As is tradition in the franchise, we will be jumping between characters and continents as we go through each of them.

The longest according to players on HowLongToBeat is Black Ops 3, the campaign of which should take players around 9 hours to finish.