I am currently using a random number generator to randomly select a random map and random biome for Custom matches, but it would be very nice to have this as a feature in the game. Age of Mythology has a “Random” option for the map that randomly chooses from among the available maps, and Age of Empires III has a similar feature. I am aware that the Megarandom map exists, but the Megarandom map is only one out of thirty maps currently in the game.
The option to randomly select the map and biome for a match would be easy to implement and would be very helpful for those of us who enjoy randomizing the map and biome when playing a custom match.