Heh that's what the second server was before. It played payload, attack/defense, and cp. We had a lot of trouble keeping it full. Basically what happens is when the server switches game modes, the people who joined through quickplay leave, and the server soon becomes empty.
But I'd definitely love a general rotation server again. If we start a 3rd server, that might be what it becomes.
Also to clarify, Payload generally rotates goldrush, badwater, and one of the other maps in no particular order. Payload Votation rotates through 7 maps, in order, unless players choose an option other than the next map.