ok thanks for the name but thats the biggest fu**in fail in my life i'm a fire fighter and i don't know the name of it ha ha well i did but i've gotten drunk over my vacation from when i went out of state and i forget some things so thanks and yeah i think it would add a lot or realism but if i'm not mistaken i think rafael said that that will be in the search and rescue mission for the WTC missionsIt's called a PASS (Personal Alert Safety System) device that can be found on the SCOTT Air packs. The pass devices are activated when a firefighter transmits a mayday and activates his PASS device or stops moving for more than 30 seconds. It would be a nice feature but are quite annoying because they go off until someone deactivates the device which means if you dont have EMS on the scene in game these annoying alarms will be going off. If you do add them then make sure you make it a low volume because even in real life these things are really annoying.
Every thirty seconds you have to move your airpack to make sure the alarm doesn't go off and when I was in my local fire academy class every time we let a PASS device go off we had to do pushups.
and this vid has a better demonstration