for Select Team:
Code:
register_event( "ShowMenu", "TeamSelect", "b", "4&Team_Select" )
// or
register_event( "VGUIMenu", "TeamSelect", "b", "1=2" )
For CT or T Win:
Code:
register_event( "SendAudio", "RoundEnd", "a", "2=%!MRAD_terwin", "2=%!MRAD_ctwin", "2=%!MRAD_rounddraw" )
Maybe that helps?