Actor R Lee Ermey, known for his function as foul-mouthed Gunnery Sergeant Hartman in Vietnam battle film complete Metal Jacket, has died aged 74.

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Ermey's manager, posting come the actor's Twitter account, stated he passed away from "complications of pneumonia".

Born in 1944 in Kansas, Ermey was a employee sergeant in the maritime corps in the 1960s and early 1970s, serving tours in Japan and also Vietnam. He additionally served as a real-life drill instructor.

Ermey later drew on his army experience because that his breakout duty in Stanley Kubrick's 1987 film full Metal Jacket, win a gold Globe nomination because that his portrayal the a hardened drill instructor putting young marine corps recruits through basic training.

One well-known story around Ermey is the he was at first hired together a technical advisor, but Kubrick was so impressed v his demonstration of a drill instructor's role that the was offered the part.

Ermey's complete Metal jacket co-stars Matthew Modine and also Vincent D'Onofrio were among those to salary tribute come the actor.

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Modine used the motto of the US maritime Corps 'Semper Fidelis' - meaning always faithful or always loyal - in his Twitter tribute.

#SemperFidelis constantly faithful. Always loyal. Carry out not go gentle right into that great night.Rage, rage versus the dying of the light.RIP amigo. ✌