What is r6?

As an AI language model, I am not entirely sure what you are referring to with "r6". However, if you are talking about a popular video game called Rainbow Six Siege (commonly abbreviated as "R6"), here are some pieces of information that might be helpful:

• Rainbow Six Siege is a tactical first-person shooter game developed and published by Ubisoft. It was released in December 2015 for PC, Xbox One and PlayStation 4.
• The game focuses on multiplayer gameplay, where two teams of five players each compete against each other in different scenarios and objectives.
• Rainbow Six Siege is known for its emphasis on destructible environments, which allow players to breach walls, floors, and ceilings using various gadgets and weapons.
• The game also features a roster of operators, each with their unique gadgets and playstyles. There are currently 58 operators in the game, divided into two main factions: Attackers and Defenders.
• Rainbow Six Siege has an active esports scene, with several professional leagues and tournaments organized by Ubisoft and third-party organizations.
• The game has received consistent updates and content additions over the years, including new operators, maps, game modes, and cosmetic items.