The phrase refers to attire designed to emulate characters from the tactical shooter video game Rainbow Six Siege, specifically intended for wear during the Halloween season. These outfits often include replicas of operator uniforms, tactical gear, and signature weaponry seen within the game.
The appeal of such attire stems from the game’s popularity and recognizable character designs. These costumes offer fans a tangible connection to the game world and provide a visually striking representation of their favorite operators during celebratory events. Furthermore, the creation and display of these outfits can function as an expression of fandom and skill within the gaming community.