Can you expand on this?
Was it a script or evented/variable?
I imagine you could pull a random variable on a player transfer, then assign each variable to a different map transfer event. The problem with that is players could miss maps, or, if a different variable needs to add to a certain number to flip a switch and force a transfer to boss map, players might see the same maps more than once.
This could be fixed, but it would mean that players would see all maps, just in a random order and i dont know if that would have any merit.