Make sure to use a VPN (change your ip) to a russian one or whatever, sign up making a new steam account under the russian vpn, buy a steam cd global key from g2a with russian vpn, activate the cd key on russian steam account with russian vpn, once downloaded change steam region to USA and change vpn back to original ip and you're good to go. done this like 6 times (because i sucked at coding and was banned one too many times....) its fullproof