I live in Sydney Australia. I was finally able finish the BTB update earlier this morning. Started playing it a couple hours ago. Was able to play 2 full games of BTB before each game I tried joining in multiple playlists I disconnect about four or so minutes in.

Out of the last 12 games I've been in, 10 of them I have been disconnected before halfway through. I tried BTB, Warzone, Team Arena and SWAT. Each one coming up with the message "Connection Lost" or "Fireteam Changed, returning to lobby". I have never seen these messages before today. I've been able to get into games fine, and they don't really lag, it just seemingly randomly happens.

Also it is taking a lot longer than usual to find games in the first place.

I'm not overtly angry, I know I can't expect the game to work 100 percent all of the time, but I'm absolutely gutted that I've gone down in rank in SWAT and Team Arena. If anyone else is having issues or a fix, pls tell me.