Inside front page includes a scene from interior story and head shots of the Howlers. Gray tones added by Marie Severin.
Story takes place in 1967 during the Vietnam War when Nick Fury is a Colonel in S.H.I.E.L.D. (between STRANGE TALES #158/159). Splash page identified this as a Howling Commandos story, rather than a Agent of S.H.I.E.L.D. one.
Feature pages. Double page spread of the Howlers appears to be inked by Dick Ayers, info per Nick Caputo, July 2012.