This is in english:
http://www.zeroy.com/script/
1. Unfortunately I forgot how the sound thingy works, but according to the script index you should try this one:
Code:
player PlaySoundToPlayer( "mysound", player );
not sure if this is only for cod4, but you should try it, though.
If not, simply find it out searching through the functions in the script index.
2. If you want to play a sound to every player at the end of the map I propose using the ambient:
Code:
AmbientStop( 2 );
AmbientPlay( "mysound2" );
Atleast that seems to be the most simple solution.