THATCHER BIRTHDAY CHALLENGE Bygaga 04.03.2019 2018, Charm, Weekly Challenges Reward Comments 19/06/2018 THATCHER BIRTHDAY CHALLENGE overview Rainbow Six Siege – THATCHER BIRTHDAY CHALLENGE Wish Thatcher a Happy Birthday with the Ubisoft Club Challenge. Destroy 10 defender gadgets while attacking to receive Thatcher’s Dog Tag charm. Thatcher’s Dog Tag charm Thatcher’s Dog Tag charm