Few days ago I had notice that the type of the map can be Change(Like is naval battle or not).But the option which can True it on single custom battle.Because the single battle have to less map to chose.I had check the battle table,but stile I don't get the way.
By the way I have to say thanks to That GREAT CHINA NETWORK.Thank to you I can go on game with Ping in 500+(Some time is 800+).So I get this idear.