As stupid as this sounds, have you checked to make sure your volume was turned up and your speakers were plugged in? Sometimes I forget to turn my speakers on, and it takes me a minute to realize why I can't hear sound.
"The work of a thousand years is nothing but rubble."
- Dr. Carl Goerdeler (1943)
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All you have to do is after youve compiled the map, make sure you compiler doesnt start MOH...instead load it up yourself, bring up the console (~) and type in maplist
make sure your map is in the main/maps/dm folder and load your map from the console
i had the same problem a while ago and that was how i fixed it