Having a lobby would greatly enhance the experience. I think many people leave because either they haven't joined the room with the right map, or are n't playing with people of the right level/type. Being able to see how many players, the type of classes are playing, and the map from the lobby would quicken the grind of looking for a room with the right map and players. It's been too often that I join a room of 3 people, and left to be the last one because of the leavers, though the quick match option should still be available.
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