In an American civilian Militia context, employment of something like this could involve one trained individual as the team lead with full-size sidearm doing observation and direction, and two common civilians as toters and operators. And since in Western settings such adapted arms may well be chambered in 7.62mm NATO, the civilians' "Militia Rifles" may well be more compatible ammunition-wise than .223/5.56mm arms.
Instead of one team of two trained machine gunners, with subbing in common folks we make TWO teams with only a few hours' training.
TDF INDEX: Cats, Guns, and National Security: THE DAILY FUDD index. https://catsgunsandnationalsecurity.blogspot.com/2021/03/the-daily-fudd-index.html
