LOAM have you actually tried that? i had a play with the mix last nite but couldn't really get it to work?
The map rotation thing you mean ?
if so yeah, it works ok, you have to set "que map on round change to on" then it makes a guess (there no change round event in the game so they have to make an assumption based on a mass side switch :S ). This allows you to play 2 rounds of each map. In addition the map list has to be listed out in the lovely names that Dice decided to give them, so for example the list for ours looks like this;
levels/mp_009cq
levels/mp_001
levels/mp_004
levels/mp_005
levels/mp_003
levels/mp_002
levels/mp_007
levels/mp_009cq
levels/mp_006
levels/mp_001
levels/mp_005
levels/mp_008
levels/mp_003
levels/mp_001
levels/mp_012gr