Bridge Kills
In the bridge you can get kills for killing someone, and when they fall off the map right after the kill.
When someone hits you in the bridge, it should put both players in combat which makes it so that when they hit you and fall off, it should count as a kill. This will help people gain more xp and make the game more fun.
If this idea doesnt seem to work. then every time someone dies, it should count as a kill. This would make getting xp a lot easier.