In describing a character in a technical setting (medical, engineer, military, etc.) , your reader may not have as much in-depth knowledge as you would like to skim by certain things. My question is how much detail can you include in describing an object or its functions? An example is I'm writing a novel in a military setting and have to explain the employment or different weapons systems and equipment such as radios, vehicles, night vision systems and etc. I want to explain them without losing the reader because, quite frankly, the military issues a lot of equipment in combat. What would any of you consider as going too in depth? Also is stopping to explain the functions of certain systeams and weaponry going to pull you out of the story?