Oh man, that Firefly is an insult to Joe fans everywhere! You are a total freak for liking him!
As for my own um, deviations....
Psych-Out: in part because we work in the same field, and in part because his role is very important in any modern army. His tech was just a little too futuristic, and that lime green vest was atrocious. BUT he was one of the few who could actually pull rank on Hawk and the brass in specific situations (like if he deems you unfit for duty, you are off the mission, maybe even off the team). Too bad he never got the respect he deserves.
Croc Master: Yeah, he is cheesy in name, appearance, and role, but in my world he is a creepy badass that even the Dreadnoks don't joke with. And, given Cobra's tropical island setting, I think his role kinda makes sense in a fantasy way. Sometimes low-tech works better than high-tech, and just the thought of all those crocs on the island is enough to keep all but the most determined recon soldiers far away.
Fishing Vest Bazooka: If you repaint his idiotic colors, this is one very good looking, realistic figure. What "fishing vest?" That is his tactical webbing. "Fishing hat?" No, a boonie hat. This figure rules!
If I think of any more, I'll post 'em.
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O-ring is better. There. I said it.