Infinite Warfare is set in the distant future, after Earth has been stripped of its natural resources as a result of population growth and industrial expansion, prompting the nations of the world to unite together and form the United Nations Space Alliance (UNSA), a political organization that handles matters related to trade, travel, land claims and all efforts relating to human space colonization. The residents of Earth rely on colonies established elsewhere in the Solar System in order to mine planets and asteroids for resources. The value of these outposts, however, attracts militant radicals who seek to control them; an action which could place the countries of Earth in a very unfavorable position. In response, the UNSA is defended by the Solar Associated Treaty Organization (SATO), a coordinated military structure that defends Earth and the UNSA’s holdings. However, prior to the events of the game, a new hostile faction emerges, known as the Settlement Defense Front (SDF), which consists of insurgents that broke away from the United Nations Space Alliance during a war of secession. Following years of a troubled stalemate with the Front, relations have deteriorated to a point where the entire Solar System is poised on the brink of war. By the events of the game, the Settlement Defense Front declares war on the UNSA and launches a surprise attack on Geneva, severely weakening SATO’s forces on Earth. As the newly-appointed commander of the UNSA Warship Retribution, Captain Nick Reyes (Brian Bloom), a Tier 1 Special Operations pilot of the Special Combat Air Recon (SCAR), is tasked to lead a crew to defeat the Settlement Defense Front on Earth, as well as journey to outer space and across other planets in the system using space-based fighter craft, referred to as Jackals, to stop the Front from taking over the entire Solar System. Assisting Reyes in the fight against the SDF are his mentor Admiral Raines (John Marshall Jones), Private Kashima (Eric Ladin), his wingman Lieutenant Salter (Jamie Gray Hyder), United States Marine Corps Sergeant Omar (David Harewood), Coporal Brooks (Jason Barry), and his robot sidekick ETH.3n (Jeffrey Nordling). Facing Reyes and his allies in battle is the commander of the starship Olympus Mons, and leader of the SDF, Rear Admiral Salen Kotch (Kit Harington).
In February 2016, Activision announced that Infinity Ward will be the lead developer of 2016’s Call of Duty game. Infinite Warfare was officially confirmed by Activision when they announced that the company would not have a booth at E3 2016, and that their products would be shown through their partner, Sony Interactive Entertainment. Activision teased the game with a video, titled “Know Your Enemy”, and a new ending for Black Ops III’s “Nuk3town” map, which shows a giant airship on top of the map. The game was leaked via PlayStation Store on April 26, and the first trailer was revealed unofficially via Hulu prior to the game’s official announcement.
In May 2016, Activision released the official announcement trailer for the game, a week after they trademarked the name of the game. The trailer of the game was officially revealed through a live-stream on Twitch. As part of the reveal, Activision is running a social media game using a Facebook chat bot, which tasks the player to decode a message. The first public piece of gameplay for the Infinite Warfare campaign was revealed as a trailer during the Sony press conference at E3 2016. The official reveal of Infinite Warfare’s multiplayer mode will take place during the Call of Duty XP 2016 convention, which will be held in early September 2016.