Well, technically, plunging fire is not as effect nor does it create as wide and deep a beaten zone as grazing fire. When confronted with 50+ threats, the widest most likely to hit method of fire is going to be desired. Of course, we are talking the need for a FPF ( final protective fire) situation wherein your weapons are expected/needed to be going cyclic, not semi-auto/sustained or rapid fire ( sustained for the M16 family is 15 rnds per minute, rapid is 60 rnds per minute and of course, unless you possess one with a happy switch, then that’s 550-650 RPM.).
As to protection, your are correct, getting behind cover ( stuff that stops bullets) is preferred. Putting on Level 3 armor ( available for the price of a weekend at the lake) is smart.
Confronting a crowd at CQ distance in a hubby/wifey team is not a good prospect, as once the situation devolves into chaos, you’ll be quickly overwhelmed and killed by blunt force trauma. Even if you get off 20 shots, they’ll still win.
I applaud their pluck, but they need to pay for some serious training, or as a pair of lawyers, hire some.
Yep.
One behind ground cover giving warning, one at an upstairs window behind heavy cover?
A couple skulls expelling brain matter rearward will likely cause many other attackers to back off.