Same lettering, too. And there's the biggest clue of all: the job number of B-647. (The other two stories in Fightin' Marines #99 have the job numbers B-1591 and B-1561, respectively.) Clearly,"The Talking Tooth" was drawn well before 1971. I think we can safely conclude, based on available data (i.e., mine and GCD's), that Molno's '70s Charlton work really starts in July, 1974 with his cover for Fightin' Army #114:
Molno drew one more war cover before Charlton mass-fired its staff in 1976, though that cover (Fightin' Army #129) wasn't printed until November, 1977. Its art was (mostly) taken from the splash panel to "A Deadly Game of Cat and Mouse":
Notice how the guy in the foreground appears to be shooting one of his own men (above)? Well, it turns out he was borrowed from the interior story's second panel and carelessly pasted in. Hence, the rather awkward detail in an otherwise tight composition. Behold:
During Charlton's reprint era, Molno's art graced five war comic covers (from 9/81, 5/80, 3/78, 12/82, and 8/81, respectively):
But we're here for the interior art, and I'm happy to report that it's the best of Molno's career (though my personal favorite is the artist's highly eccentric '60s Charlton space art). Here are some of his best compositions and layouts from Fightin' Army, Fightin' Marines, and War, images which display a looseness of line, depth of detail, and inventiveness in layout missing from much (though not all) of his pre-1974 work. In my humble yet biased view, these are highly effective and efficient battlefield depictions. It should come as no surprise that the man behind these images was a watercolorist.
By the way, going through these, I noticed to my surprise that some of them received their first (and only) printings during the reprint era--meaning, of course, that they had remained in inventory since the mass firing of 1976. And so I had assumed that, for instance, 1979s "The Cold, Cold War" and 1978's "My Duty Or Death" were reprints. Not. This stuff gets complicated!
Below: "Private War," Fightin' Marines #133, Oct., 1977:
Below: "Trapped Again," Fightin' Marines #123, May, 1975.
Below: "The Devil Dogs at Chateau Thierry," Fightin' Marines #125, Sept., 1975.
Below: "Chicken," Fightin' Marines #127, Jan., 1976:
Below: "The Raiders," Fightin' Army #130, Feb., 1978. (Not to be confused with the Molno-illustrated story of the same title in War #9, Nov., 1976):
Below: "The Chongjn Express," Fightin' Marines #118, Aug., 1974.
Below: "My Duty or Death," Fightin' Army #131, March, 1978.
Below: "The Cold, Cold War," War #13, April, 1979:
Below: "Giant Killer," Fightin' Army #127, Dec., 1976: