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 races, perks, bombs and gadgets.[4] The game features an asymmetrical structure whereby the teams are not always balanced in their ability choices.[5] 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 have been added in a recent update.[6] 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 from actions performed in-game. Each successive operator that is purchased from a single counter-terrorist unit costs an additional 500 Renown.[7]