My take on fixing these new MA issues is simple
5-Furball Arena's with 200 Limit each, maps submitted by the players just like a big H2H arena with a map that one of us makes submitted to HTC and the best one chosen will be used for that week.Each different arena would have different plane sets for all to enjoy.Only 2 countries would be allowed flight, of course the frame rates from 200 people fighting in a smaller area would prolly make your video card explode and the warps would be crazy.
Just an idea though.
I also play Bf2, and they are having the same problems, not enough maps or new ones coming out.