Alright I must have misread your explanation ply, i didnt realize there was coding involved. I dont really know much but I gave it a quick shot anyway and this is what i got;
;Artificial Intelligence Script
;Header
desc = Plr In Zone
;Triggers
:state=0,plrwithinzone=1:activateallinzone=1,sound=$0,state=1,timerstart
:state=1,timergreater=15000:activateifused
Now of course it doesnt work but I was hoping you could kind of guide me on this, Ive always wanted to get into scripting and this might just give me that little nudge.