As stated by the Deputy President of Ubisoft Montreal, Lionel Raynaud, Rainbow Six: Siege not only has a fantastic cooperative multiplayer component, but also a single-player campaign: " we were tired of the classic single player campaign, made up of military missions in which all events seem to be triggered by the mere presence of the player. We want the same level of intensity and surprise that created the scriptate scenes, but within a multiplayer game: missions can be played in a way totally free, is the player to choose the order in which to do them. Everything is dynamic, which means the game will introduce new content with the progress of the missions ".

From the statements made, seems to emerge a single which follows the multiplayer component, without which is populated by individuals and then simply entrusted to the AI of the game. Something like Brink or other products like that, but with a lot more attention focused on narrative component.