If I'm not too late already, I have a bug I'd like to get fixed, and it has again to do with the scoreboard (odd that I forgot to mention it last time when I was talking about ending scores too).
Very often I experience the following: when I join a match late, during the last round, the game doubles whatever score I manage to get in that round. If I manage to get 15 kills in the last round, after the match ends it shows I earned 30. Many times the score boost I get makes me win the whole match just for doing well in that single round. For gamemodes like Living Daylights that allow you to get score at very fast pace the effect is particularly significant. If you get 30 points in one round, in the end it shows you got 60 (IF you joined the game during the final round). I can't remember if it doubles your deaths as well, I think not.