I noticed this very annoying bug with 4 team selection menu. It is not too game breaking, but still worth mentioning. NOTE: I have not been able to test if this happens with everybody or just some people. When you join any 4 team game it will show the team selection menu with 4 teams. If you press TAB while in that menu to see scoreboard it will throw you into spectator mode and you cannot change your team. Basically you are stuck in spectator mode, unless you reconnect to the server. I do not know any way to fix this, only way seems to be to not press TAB and select a team first. This is not a rare problem, since most players check the scoreboard before joining a team. Thank you for reading this!