It will be said over and over that in any situation that involves a group effort, communication will make or break you. I have seen far too many times where peoples communication equipment completely shits the bed which ultimately leads to failing at their objectives. This article is more dedicated to all of the simulators out there (airsoft, paintball, militia, etc...) so if you have no interest in any of the aforementioned, its probably best to move along. Im going to start off with a quick wiki on what a Throat Microphone is for those who don't know.
A throat microphone, also laryngophone, is a type of microphone that picks up sound directly through sensors in contact with the neck. Because of this design, it is able to pick up speech in loud environments, such as on a motorcycle or in a night club, where other types of microphones would not function well because the speech would be drowned out by background noise. This type of microphone is also able to pick up whispers and works well in an environment where one has to keep quiet while communicating with others at a distance, such as during a covert military operation. Throat microphones were also extensively used in World War II-era aircraft, and by German tank crews.[Source]
