GIGN Anniversary Challenge Romashka 03.03.2019 2016, Charm, Weekly Challenges Reward Comments 20/12/2016 GIGN Anniversary Challenge overview Rainbow Six Siege – GIGN Anniversary Challenge Celebrate one year of Rainbow Six Siege with the Ubisoft Club Challenge. Win 10 rounds with GIGN Operators and score Twitch’s Shock Drone charm as a reward. Twitch’s Shock Drone charm