Since now rock the vote exists, and other plugins, random map selector maps and such things I believe have become obsolete and unused, specially since snark cafe doesn't exist anymore and also since it could happen that some map doesn't exist anymore. So I have uploaded an alternate version that makes this map just end after pushing the button instead of changing to a random map, so it can be played on any server without issues.
Random Map Selector 2 / Discussion
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This is the discussion related to the wiki page Random Map Selector 2.