No, a bayonet as back up weapon hasn't been effective in a long, long time. We've seen it as a desperation weapon, during Stalingrad and other battles where bot

No, a bayonet as back up weapon hasn't been effective in a long, long time. We've seen it as a desperation weapon, during Stalingrad and other battles where both sides logistics were stretched beyond - far, far beyond - their breaking point. Fuel, shells, tanks, bullets, then shovels, axes, knives and teeth . . all were weapons of war in the great inferno of the early 20th century . . but no one, ever, would substitute a bayonet for a spare mag on an autofire weapon. Even basement clearing. I can see, in some circumstances, a case for knives as close-in weapons during reconnaissance or other stealth missions, but even in those circumstances, an army with functional supply systems will pack a DeLisle Carbine, a "hush puppy", a Welrod pistol, or one of the many often homebrewed stealth weapons enterprising recon squads often baked up.