ok, i realise that for alot people reading this the two downloadable scripts will seem obvious. But Im sure there are a few out there who would really appreciate the help
The scripts are...
PLRINZONEACTIVATEONCE.FPI
and
SOUNDINZONEONCE
copy them into your scriptbank (duh)
the first script can be used as the main FPI for a triggerzone. It means that if make the trigger zone spawns a loada baddies and plays a sound, it will only do it the FIRST time the player enters the zone.
The second script is used as the main FPI for a sound zone, and means it will only play the sound once, the first time a player enters the zone (no more using invisible entities)
Anyway, they're free, hope someone finds them useful.
"Guns for show, knives for a pro."