Tom Clancy's Rainbow Six Siege is a first-person tactical shooter video game developed by Ubisoft Montreal and published by Ubisoft. Considered as a successor to the now cancelled Tom Clancy's Rainbow 6: Patriots, Siege puts heavy emphasis on environmental destruction and co-operation between players through tactical movements, advancements, defensive positioning, calling out enemy locations and the operators chosen by the enemy team.
Tom Clancy's Rainbow Six Siege is a first-person tactical shooter, in which players take control of an operator from the Rainbow team, a counter-terrorist unit. Different operators have different nationalities, weapons, bombs and gadgets. The game features an asymmetrical structure whereby the teams are not always balanced in their ability choices. The Counter Terrorism Units (CTUs) available for play include FBI's Hostage Rescue Team, the British SAS, Germany's GSG-9, Russian Spetsnaz and France's GIGN, each of which has four operators per CTU. Canadian operators from Joint Task Force 2, two American operators from the US Navy SEALs, two Brazilian operators from BOPE as well as two Japanese SAT operators have been added in recent updates. Players also have access to a "Recruit" operator who can choose from a wide variety of gear and gadgets. Players pick an operator from any unit before a round starts, and are not allowed to change operators during a round. An in-game shop allows players to purchase operators using the in-game currency "Renown", which is earned at the end of matches from actions performed in-game. Each successive operator that is purchased from a single counter-terrorist unit costs an additional 500 Renown, with DLC operators costing 25,000 renown each.