I think that we can all agree that in a major shtf situation, our priority will be getting out of the city & moving into a country or wilderness area. Later, some may be able to move back to the city, but by then, city living will not be the same as it used to be. Sustainable is the key word, whatever we do, wherever we go, in order to maintain a comfortable lifestyle we will need to live in a sustainable way. This means using methods that can be maintained over a long period, & having equipment that will last or can easily be repaired or renewed. So how sustainable is your equipment? If you have to travel on foot, is all your gear sustainable? If all your gear is not sustainable, then you may be carrying extra weight & that extra weight may be at the expense of more important equipment that you should be carrying. A modern firearm for instance will mean carrying a lot of ammo which will be heavy, & IF that firearm malfunctions, can you repair it? There will always be a need for more medical supplies, more food, & more water. Will your choices of equipment compromise your need for more important items? Keith.