A lot dedicated servers have this problem:
The server no longer has player but it is still running a 3rd party map, this prevents people without the specific 3rd party map from joining the server.
This plugin checks the map name and number of online player, if the above condition keeps for more than 5x12 seconds, then change the map to default official map(c1m1_hotel).
checking intervals and default official map are hard coded, modifications are only possible by modifying the source and recompiling it.
Source code and smx file are available.
Possible improvements:
Check the map and number of players when a player leaves the server?
Threaded Mode