[quote=@Dark Light]
[@DarkStar] how's this 'pulse' thing work?
[/quote]

It's like a text-messege in Skype over your PADD.

Fun note: viz-camo or no, it's pretty easy to tell when a bazooka is fired.
-Or in our case, when one is NOT fired.

BTW: I'm assuming Kat did NOT key her screaming through the radio, pretty sure people in combat don't key-in the mic just to scream.
-Since the scream was apparently only heard/mentioned by one person.