death eaters 1970s

so this is the 1970 marauders accept this is the death eaters Sirius (Regulus' brother) ran away and he's a forced death eater , hes a pure blood , quiet , moody and is planning against Voldemort to destroy his horcrux . his friends are Barty crouch jr and Evan Rosier . Your the mastermind behind the majority of Voldemorts plans . your very hot .