Fightin' Marines was the home of the long-running Vietnam War feature "Shotgun Harker and Chicken", written by Joe Gill.

Other notable contributors to Fightin' Marines included Pat Boyette, Sam Glanzman, Jack Keller, Sanho Kim, Fran Matera, and Warren Sattler.

The cover art for Fightin' Marines #5 is by Matt Baker, best known for his work on Quality Comics' Phantom Lady.

Created by writer Joe Gill and artists Bill Montes and Ernie Bache, the series starred Sgt.

Shotgun Harker and Chicken stories were reprinted in Fightin' Army issues #140, 141, 146, 148, 156, 163, 167, 168, 172, 173, and 175 (as well as the Charlton titles War #45 and Battlefield Action #69 and #81).