First of all, i love this game. probably the best of its kind out there.
however, what totally ruins it for me are the other players. in most games there's literally zero teamwork, everyone just does whatever he wants. Apart from that, i do get the idea of not being able to choose a map but the result is that everyone is leaving games where there are maps on they don't like. why don't you make it possible to pick maps and add some sort of cooldown before they can be played again? this way, people would have to play on other maps if they want to keep playing.
it appears the skill points i spent after leveling up got deleted again after i closed and restarted the game. i'm back to the initial numbers now... quite an annoying bug.