@Shadow … Two of the women are indeed armed with firearms, but not every survivor should be depicted in that manner.
However, my real comments would be
1) – Why are you assuming the wasteland is the USA. Could be anywhere. I don't know anything about the game, but when I picture a wasteland, I thing of Road Warrior, and thus Australia, where gun ownership has been frowned upon for some time, and confiscation was a thing.
Or Great Britain, where they have been systematically disarming the people for decades.
2) – Guns won't be the limiting factor, it will be the ammo. I always assume that will be in short supply. Without ammo, you are simply carrying a club.
How many rounds get fired off in a standard skirmish? I'm guessing not a magazine or two, but more like several hundred per soldier. So how long will it take a typical civilian who has 1,000 rounds to burn through all of their 9mm or 45 cal? Having 1K rounds during peacetime means you can head to the range and fire off 50-100 rounds and keep up your skills, and order another box or two to replace them.
Once the SHTF, probably a year into the apocalypse, you may be down to empty boxes.