1) When someone camps for a certain period of time, or that's all they do, they get tagged and you know where they are. They get the mark of shame (tm)
2) Secure the point ain't fun. Don't count kills. That will stop the players that snipe the point not play the mode. There needs to be incentives to capturing more than killing.
3)The lag!
4) the spawns!
5) Take existing maps and make the ares that are blocked off playable for variety
6) Make incentives to fight in the ares no one even goes to. Maybe a temp god mode pill hidden there or something.