Cool. ANOTHER thought has occured. Since players are bound to rack up plenty of kills, I think kill points should be much smaller compared to bonus points and levelling up values. For example, a player might score five points for every kill and 250 for finishing 1st or something smaller like 100 for last place. (Those numbers are just examples.) Again, this puts more focus on placing well in games to level up rather than kill whoring, with frags giving the player a few points added to their score, but not being the focus.
Oh I was meaning to mention as well. You should include a ready/unready status indicator next to each player in the lobby that they can check at will to indicate they are ready to start the game and can reverse it at will. This should make map selection more user-friendly, because if someone indicates they are ready to play, they must be happy with the map chosen.
AND ANOTHER THING! you should be able to view people's profiles and stats by clicking on their name in the lobby. Sort of like xbox live's gamercard feature, but more basic. So you update your own profile with things like name, location, bio, tagline, etc. and then have your stats automatically displayed like kills, daeths, wins, losses, rank, etc.
OK, I'm done demanding stuff for today!
MASSIVE new multiplayer game coming soon!