When starting a game you are presented with a long list of maps. I like to explore new maps and I am not familiar with alot of them. However it can be difficult to find the kind of maps you want to play as they are only listed in alphabetical order.
My suggestion would be to put maps into different categories. This could based on size or complexity i.e small, medium, large or easy, average, advanced and complex.
I think this would make it alot easier for the user to find maps they want to play on with the suitable settings.