Ok, setup a test server. GAFvsB3D-PerformanceTest, or something like that. Limited to GAF U and Beyond3d only. If you get a chance to test it out please give feedback on map rotation, server options, performance, etc.
I tried to stick with maps that were for 8 - 24 or 12 - 24 players, in order to accommodate the maximum amount for the server while also trying to keep the minimum amount for the map as low as possible.
Brilliant! I can't take a look myself (saw it too late, need sleep), but I asked the guys at GAF to give it a spin and to report back.