Bar Fight!
Basic idea - there is a bar - and a brawl breaks out, maybe spills out into the street - the staff (bartender, servers, bouncers, cooks, dj, boss, etc) are neutral but maybe to earn bonus in any part of the map one must gain control a staff area. Map broken into Bar, Pool Room, Tables, Dance Floor, Back Bar, Kitchen. Something like that.
I have no known skills in map making so someone would have to pick up and run with the idea. Thanks for entertaining.
Crude mock up of the map:
http://postimage.org/image/3jf745ac/(excuse the stationary)