The Gunrunner Raid could have been a classic episode of The Rat Patrol. That is, if such a show like The Rat Patrol could ever have a classic episode. The storyline is very interesting: an Allied flying ace gets tired of the war and becomes a black marketeer. This puts him into direct conflict with our heroes from the Rat Patrol who are interfering with his operations and costing him money.
The storyline might sound a little far-fetched but at least it's a more original and interesting premise than your run of the mill shoot it out with the Germans episode of the series. So why in the hell did they cast Steve Franken as the gunrunner? That guy was as out of place on The Rat Patrol as a hen in a den of foxes. Chatsworth Osborne, Jr. as a gunrunning war profiteer? I think not.
Franken's role of Ned Cunningham cries out to be played by someone like Bradford Dillman (the ideal choice) or Jack Kelly (a close second). Either Dillman or Kelly in the role would have made The Gunrunner Raid memorable. Just by showing up. Instead it's routine. And that's the way it is.