Treyarch, the company behind Call of Duty: Black Ops III, was working on an open-world campaign at the time of the game's release.

Treyarch, the company behind Call of Duty: Black Ops III, was working on an open-world campaign at the time of the game's release.

The developer apparently abandoned such ambitions after a year of work on the campaign. In 2019, Jason Schreier broke the news of the open-world idea.

The developer apparently abandoned such ambitions after a year of work on the campaign. In 2019, Jason Schreier broke the news of the open-world idea.

At the time, not much information was provided, but today we have a much clearer picture of the scope of those intentions! Many leaked photographs have been released

At the time, not much information was provided, but today we have a much clearer picture of the scope of those intentions! Many leaked photographs have been released

Assassinations, defence, and sabotage were just a few of the micro modes that would have been included in the game's open-world settings. Additionally, a cycle of day and night would have existed.

Assassinations, defence, and sabotage were just a few of the micro modes that would have been included in the game's open-world settings. Additionally, a cycle of day and night would have existed.

in addition to weather trends. Last but not least, players may have anticipated building and economic issues. Unfortunately

in addition to weather trends. Last but not least, players may have anticipated building and economic issues. Unfortunately

The game's real campaign ended up being far more linear and was cut "midway through creation."

The game's real campaign ended up being far more linear and was cut "midway through creation."

The ensuing modification was reportedly exceedingly challenging for the creators, who had to work under intense pressure to achieve the game's deadlines.

The ensuing modification was reportedly exceedingly challenging for the creators, who had to work under intense pressure to achieve the game's deadlines.

The ensuing modification was reportedly exceedingly challenging for the creators, who had to work under intense pressure to achieve the game's deadlines.

The ensuing modification was reportedly exceedingly challenging for the creators, who had to work under intense pressure to achieve the game's deadlines.