Game runs smoothly, there are some annoying problems though.

While I was using the sync shot to mark enemies, game started to freeze randomly for a second or two, and just a second later the game froze again, after canceling the markings it was gone. All squad members froze at the exact same time. I am not sure if it's a network problem.

When I collected those information things I couldn't choose which information I want, I could only choose the first one which is default selection or cancel, arrow keys didn't do anything. It's not a constant problem, sometims it works, I have not played enough to see the pattern.

There are some other minor bugs, like when character crouches on a rock or something the foot bends strangely, if you headshot a crouching person the dead body jumps into the air (just rainbow six siege), but those do not influence the gameplay. Overall I would say my beta experience is 8/10.