Being a fanboy i thought about this maze BS, with 2 spawn points per side (you can choose where to spawn or get there automatically) ; from the spawn point you will drop onto the battlefield.
There is a Control Point under the middle one to which you can get through a tunnel also there are several circular walls to get to the Control Points making it more interesting and requiering strategy to keep points.And no you cannot jump on the walls, they r quite high.
http://yfrog.com/2mbattlestationv2j
Gief ideas
Also a small textureless walkthrough
http://www.youtube.com/watch?v=26HxAhZ9jxs