In The Corps, late eighties, early nineties, we would delight in the joys of the full auto weaponry. With Uncle Sam (you the taxpayers of course) footing the bill, we fired endless belts of .50 and 7.62, hundreds of rounds of 5.56 from SAWS and M16A2s on single and three round burst. My favorite was painstakingly disassembling belts of .50 and rebuilding tracer only belts for night fire with the M2HB.
As an 0331, I humped the M60 many a mile, too. Full auto is n ice when someone else pays the ammo costs. I'll take direct, concentrated, well aimed shots from semis, thanks!