I can only hope that the Brit Bn-level Machine Gun Platoons and the USMC Coy-level Weapons Platoons actually (and can) use their complete tables for said gun.
Although I'd need a quick re-fresh Norfolk, I learned to employ defilade/indirect fire during the period of instruction at the Infantry Officer's Course. I believe that our advanced MG leader's course does the same.

When I was a young weapons platoon commander, employment from defilade was a collective task that our battalion commander tested during a Wpns Plt competition overseas. I still stay in touch with the section leader who won scored highest during that phase (mine ).