M1 Carbine wasn't used in front line battle?

[Seaspriter]

Anyone want to take a stab at who was issued what weapon?

So, if so few men were using the M1 Carbine, how is it that over 6 million were produced? Who got them? How did Audie Murphy get his? How did all those photographs of M1 Carbines come into existence? Why did the Army and the Marine Corps send so many to arsenals to be refurbished for the next war (Korea)? Something's missing.
RIFLE PLATOON AND SQUAD IN OFFENSIVE COMBAT, Training Bulletin NO. GT-20, Issued March 15, 1943, The Infantry School, Fort Benning, Ga doesn't even acknowledge the existence of the Carbine. It calls for a Squad to be armed with 10 M1 Rifles, 1 BAR, and one M1903 with bayonet (presumably this was the rifle grenadier with grenade launcher). So, obviously the 6 million Carbines must have been used by a "Phantom Army" -- much like Patton's 3rd Army in the UK with balloon tanks. Audie Murphy must have obtained his Carbine through clandestine channels. And all those 1940s movies I watch on TCM showing squads carrying M1 Rifles, M1 Carbines, Tommy Guns, and M3 Grease Guns must have been the result of the wild imaginations of writers and directors. And the none of the authors of books and articles should be believed. This is getting really interesting.