“Fifty-Fifty O’Brien” by L. Ron Hubbard
Publication date: December 1936
Original publication: Top-Notch
Genre: Military & War
Story description: Feeling his talents wasted, knocking down ducks in a shooting gallery, a young man joins the U.S. Marines—but life in the jungle is not quite what he expected.
Currently available as part of the Stories from the Golden Age series, in the book Fifty-Fifty O’Brien.