That layout looks fine for multiplayer. Its all nice and symmetrical and what-not. It should be easier to balance as such.
The real trouble that you're going to face is actually making the guts of the map, heavy cover placement and proper balancing. Once you do that, its even harder making it look good and not obviously the same as the other side of the map.
I dont know what stage of mapping you're at now, but you should always start with the height-map. Its alot easier to build around a near-finished height-map than changing it while building. You'll constantly need to adjust everything and its a pain. Most game-devs get theirs from real locations and modify it slightly.
lugie ive got offtopic question what u can say about my map karpacz link below