.Map :: MoHAA Mapping

Anyone knows (Wombat, please help;)) how to setup the alarm system? I want to use it in a sp map: As soon as the alarm rings thousands of enemies spawn to chase the player. But neither the alarm system nor the spawning work in my map. Can someone please please please make me an example map?

Thanx in advance
Manstein

have you read thru all of the alarmer.scr and alarm_system.scr files and checked that you've got all the targetnames right?