This is the second time this has happened to me and a few friends. We spend hours/days building a base and a hacker comes along and kills us instantly and takes our stuff. What is the point in playing and aiming towards building a base if there are no anti-cheat measures in place? There are 10+ Chinese players with LEVEL 1 Steam accounts on an EU server.
I'd like to add that there are SO many hacking tickets open here, this should be your PRIORITY issue. Not new maps/guns/minor bug fixes. This is GAME BREAKING.