I think we can all understand the reasons why Fallout 4 modders AronaxAE and FancyPants might want Deathclaws in Fallout 4 to look and sound like horrifically mutated versions of classic WWE wrestler Macho Man Randy Savage. I mean, who wouldn't? It's the natural progression of beast to man and can be used to scare children in a pinch - the most important work of all.
There's a whole, wonderful, terrifying world of Fallout 4 mods out there.
It comes hot on the heels (four years later) of their mod that turned Skyrim's dragons into a similar terrifying visage of late 80s machismo. Once you've found your audience, you need to provide them with regular content, those are the rules of the internet.
God, those are proper terrifying. There's an artistry to the mutated hands, the horrifying faces, the choice of quotes. I don't want these anywhere near any game I ever play, nor the likely equally horror-filled rip-offs that are going to appear for everyone from Jon Stewart to John Cena. Hopefully someone works out how to have them constantly broadcast the theme song whenever you get close, screaming it like a shockwave.
You can get the mod at Nexus, natch. It looks fairly easy to install after some basic file edits and should work with any save files you have lying around, as well as not leaving those files unusable after you've uninstalled it. Of course, you could just leave your wasteland Machofied permanently. Then you'd be a real man.