Myself, my brother, and a friend were just playing and suddenly me and my brother had the game freeze, then come up with "Global Ban". Originally thinking it was just some server-side thing (as we'd never encountered it before), we attempted to reconnect to the game, but couldn't. Left our team and tried to connect to single player games, only to find we couldn't do that either. A quick Google search showed that this was actually an all-out ban for us, despite not having done anything wrong. We go to the Steam Discussion for the game and found there were a huge amount of other people suddenly posting having had the same thing (the main thread can be found here with (at the time of writing) 202 posts: https://steamcommunity.com/app/578080/discussions/1/1694923613863907775/).
8th June 2018