As one of the many players who is really excited about 5v5 firefight mode, I want to provide as much information about the bug(s) that is currently making the Matchmaking queue very frustrating, and see if anyone else has ideas about what could be causing players to not be connected at the start of a new match.
At least 50% - 80% of matches do not start because one or several players do not join the server at the start, and sometimes the match only provides 9 players to begin with (which can be seen during the loading screen).
Here is an example of myself not being able to connect to the server, even after restarting my client:
Several minutes later, I was still unable to re-queue: https://www.twitch.tv/videos/305451268?t=03h29m20s
I have also seen a match start with 5v4 at the start, but only once or twice.
I have my regions set to NA East and NA West only. In the match previous to this, only 9 players were matched to begin with instead of the required 10. I have recently deleted all my %appdata%. I'm on windows 10, i7-6700K, GTX 970, 16GB RAM
It has also been reported that players are matched after cancelling their queue.
One easy stopgap that would help a lot would be to reduce the pre-game timer from 3:00, down to 1:30. This would at least reduce the amount of wasted time by a good amount.
On the plus side, players are having a great time playing 5v5, and we will keep waiting through the bugged queue to play it! I will be so excited when this issue gets resolved.