Should it end today?
Yeah, according to timer it was supposed to end in a few hours. But it seems that devs need those (hopefully only) two days to throw some more levels into Berlin CBT but not open it for everyone anyway.
Actually had an interesting side bug when that happened. Got a connection refused match when I tried to join a match and my achievements had reset when I got back to the menu. Figured "lol why not and tried to earn em again but it wouldn’t earn any progress and it reset back to normal after a restart.