The number of lvl 4 players in matchmaking for the Medical mission (Hard), was staggering...1/2 the players acted like broken AI. They stood in cover forever, then ran out and died, crawled to me, got a revive...stood in cover, ran out and died again. repeat.
The other mission that the open Beta had was worse because, the group I was with was under powered but they had a lot of heart so I couldn't abandon them.
I even failed an encounter that didn't allow for reset or anything. I actually don't even know what I was supposed to do because I heard some chatter from one mission and ran into an encounter that had chatter. Next thing I know, I drop a rioter and it said something like "Mercury dropped, encounter failed." Could have been Mercy dropped, whatever.
They definitely seemed to have upped the difficulty which is great.