You shouldn't use the title "Fin Fang Doom!" unless Fin gets a metal mask!

From 2013, AAFES 15th Edition [Iron Man] #15, "Fin Fang Doom!" Written by William Harms, pencils by Tom Grummett, inks by Cory Hamscher.

This is the third AAFES/U.S. military promo comic we've seen here: Grummett had also done art for the Thor issue, and we saw Captain America's a couple months back. (Again, I got these all from the same shop's dollar bins, although not at the same time!) An illegal drilling operation from Roxxon wakes up Godzilla Fin Fang Foom, who then starts tearing up Seattle. (Fin's arm is distinctly different than Godzilla's!) Iron Man--in the slick but not often seen black-and-gold armor--tries a trick that worked before, dusting Fin with "isaria cirada," although I'm not sure where he pulled that out of. It also doesn't work, so Tony asks Pepper to research why; while he and Rhodey--in the Iron Patriot armor, which I kind of hate, although I think you're supposed to--keep Fin busy.

Pepper discovers, Fin had built up a resistance to the herb, and it would take a massive dose to stop him. A pressurized deployment device is prepared, but three soldiers have to ride in with it to activate it, which also involves fixing it midstream. Fin gets gassed, and Tony has him taken back to his underwater trench.

A fun little one-shot: I liked the Cap one better, but still good.