Ok i've never played any of the other fallout games, but still this is a post apocalyspe moment. Guns, and ammo should be much more scattered,infact should be considered a delicacy. Meaning we should be much more on the survivalist side, Using any weapons we can find, rocks, sticks, Dirt etc. Like in the condemned series, where u can break the Pole off an light switch and use it as a weapon.
This would have given the game a much more Dog eat dog approach to being on the hard rought outside of an nucelar war aftermath.
Also supplies such as food and water should be much more rare, and harder to get meaning there should be like an canabalism Skill or perk.
This is just a idea