What a disappointment.
ROF bug is there. If you drop the weapon you are using that is not switching, and pick up another weapon, that one also has the ROF stuck as well.
Did this countless times on the Coop Retrieve map.
Long connection times getting into a server that is running the TDM domination map.
Server lobby, if a server shows that there is space, clicking to enter it gets you a message that it is already full. Happens randomly. And I saw it on a server that was a few slots under capacity.