Operation Red Crow is the fourth expansion to be released for Tom Clancy's Rainbow Six Siege. It adds two new Operators from the Japanese SAT CTU and new map Skyscraper. It was officially announced on November 2, 2016 and was released on November 17, 2016 for Season Pass owners. As with other expansions, all content released is free for players but can be accessed one week earlier with ownership of the Season Pass.