Thanks!
It could in some ways also describe trying to communicate while wearing the old OBA’s used for firefighting. The nozzleman {One on One} would have to yell to the On Scene Leader standing outside the compartment on fire what was going on. As many as three persons may have to relay what you’re saying and get it right. It’s about like trying to understand someone shouting with both hands over their mouth. Last I heard the Navy switched to Scott Air Packs. I’d say they likely have radio comm now also.