Keep in mind that the following is absolutely Work In Progress content
I've shut down the test server for now and might bring it back in the future if the solution of Nadeo doesn't appeal
i started building my own version of a united/multi-environment server system
it's far from being finished but you're open to check it out already
http://steeffeen.com/united.php
(or search for "united" in the server browser)
what it does?
after each map it switches you over to the next server which is running another environment
current rotation: canyon > stadium > valley > canyon > ..
it already supports local and dedimania records
all envis are running time attack with some random maps from mania-exchange that i've added
they might not be the best so i'm open to add some operators from the community who will be able to add and remove maps
just hit me if you want to help out
don't hesitate to post feedback and ideas (but bear in mind that the current version is an early alpha without big extra functions^^)
it might crash some-when needing me to restart the tool, i'm sorry in that case
for the records: i'm developing a new server controller for this purpose
it will be publicly available when it's done (including the United plugin)
have fun

steff
// Edit: added more information