There are 16 main missions in Call of Duty: Black Ops Cold War, and each of them is listed below. Depending on the player's choice in Identity Crisis, the mission order will branch out to either The Final Countdown or Ashes to Ashes.
Black Ops Cold War has three endings: a Good Ending, and two variations of a Bad Ending. These Endings will show once you've wrapped up all the missions in the game, and a short recap has played through that reiterates all the actions you've taken in the campaign to date.