The Longest Day is an achievement/trophy in Call of Duty: Infinite Warfare. It requires the player to complete the campaign on Veteran or Specialist difficulty.
Xbox One achievement image
- The name of the achievement refers to the fact that all of the missions excluding Rising Threat and Operation Blood Storm take place on the same day: May 7th, 2187.
- if the player complete the campaign like an example : all missions on veteranbut the retribution on specialist then the achievment is not awarded