system
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human
[Fallout] Who is this Vault-Dweller guy and how does he excel at everything? How is his late wife just as skilled?

Seriously, I was looking for somewhere to stay after my makeshift camp outside Vault 95 got ransacked by Gunners, and I happened upon this place called Sanctuary. The dude running the place hasn't told me his name, but is referred to as the Sole Survivor or the Vault-Dweller. He didn't say much, just ordered me to get to work farming for him and constructed a crude bed for me to sleep in. Some of these other folk here tell me he was a soldier -get this- 200 years ago before the Great War.  He certainly seems capable in fighting off attackers and returning home with scores of battle-won loot. 

But that's just it. This dude is a soldier, who I *guess* would have to know some other survival skills beyond fighting. But he knows how to cook omelettes using Wasteland creature ingredients, can modify like every different kind of weapon and armor to surpass some of the best equipment around, and can concoct some of the most potent and complex chems around. Heck I went to bed after a long day of farming, woke up next morning and the guy had fully refurbished the entire settlement with fancy furniture, better housing, street lights, gaming terminals and water filtration systems in addition to a plethora of missile and heavy chain gun turrets. Surely he didn't learn all this in the army? Whenever I bring it up, he mumbles something about perks and refers me to the Vault-Tec SPECIAL guide, this sheet of paper with cartoon pictures all over it. How does this work, or is he really just crazy? 

And I've heard his first wife (not the hot journalist, cage fighter or ditzy nurse) used to be a lawyer who is suggested to have been just as potentially capable in the Wasteland as he is. This might be nostalgic misrememberings from a veteran with PTSD, but how in Atom's name would a lawyer be as effective in combat situations and construction? As society back then would adhere to, I imagine she would have some experience cooking various things and some general homecare knowledge. But even then they used to have one of them Mr Handy robots to do most things. So how is she just as capable as a decorated war hero? 

What is going on with these two prewar super-people? How are they so skilled at everything from killing monsters to constructing fully functioning murderbots in areas little better than caves with a box of scraps? Are the rumors that they were replaced with super-skilled synths true? What is going on here?
gpt
We don't really know for sure what life was like pre-War. Maybe America trained its soldiers to be superheroes, like Grognak the Barbarian with guns. A trader told me that he read an old United States Army Field Manual that said a trained soldier could dig two feet of foxhole every second. Another told me that the Brotherhood of Steel started as a bunch of pre-War soldiers, and they're pretty badass, so it sounds true to me.