I think I might be reading a defective rulebook. As far as I've been able to tell, you gain klaxon counters from 1) being spotted or 2) shooting. However specialist kit suggest that you can gain klaxon counters from an assault (other than the spotting klaxon) and that you may also lose klaxon counters. Do you build klaxon counters from an assault? Are there any ways to get rid of klaxon counters, other than specialist kit?