Wiktionary
n. Someone who uses a machine gun.
Usage examples of "machine-gunner".
The troopers in the back of the truck and the heavy machine-gunner craned forward, grinning and calling ribald comment.
The machine-gunner fired a long burst into the knot of half-naked troopers as they spilled out of the front door.
Ahead of him, Comrade Lookout reached the shelter of the wall, but the machine-gunner on the kopje traversed back towards Craig, kicking up curtains of dust and lumps of clay as the stream of bullets reached out for him.
The sergeant sagged forward without a sound, and at the same instant Craig heard a soft scuffle and grunt be-hind him as Tungata took on the machine-gunner.
Only one small detail worried Shasa, Verwoerd's blue eyes were slitted, as though he were always looking into the sun, and though they were surrounded by a complex web of laughter lines, they were cold eyes, the eyes of a machine-gunner staring over the sights of his weapon.
So did the other crewmen from the experimental model: the loader, the bow machine-gunner, the wireless operator, and the driver.