Its like this.
You CANT Region lock china.
The Chinese want to play on western servers, even if they had there own - they would still play on the EU US server.
Block an IP Address from china connecting to the EU/NA PVP server, they can just use a VPN. Same with the SteamID, you can just change the region in steam use a vpn.
come on guys stop making these shitty posts its embarrassing - KILL THEM AT THE GAME. dont winge on the forums like some looser.
That is all