A group or community that has some arms is definitely in a better position than a loner with an arsenal. A group with an arsenal and good social skills to make

A group or community that has some arms is definitely in a better position than a loner with an arsenal. A group with an arsenal and good social skills to make alliances with other groups, and the tactical abilities to acquire whatever they lack and defend themselves from others, will be in the best position. There's probably an ideal minimum of ammo to go with the guns. But more ammo is better.