Back in the day we didnt have any of these air soft guns and plastic bb's. We had Crossman 766 pellet guns and used to build tree forts and underground bunkers or short trenches and shoot at each other. For a while I was the cool kid because my father who was a machinist helped design a Freon powered bb machine pistol but that never got going as Freon was being phased out as bad for the environment. CO2 and compressed "green" gasses were not in the cards at that time. Then we got into modding riding lawn mowers and did some back woods bashing with those until we were able to afford dirt bikes. Oh to be 12 again and know what I do now. (hope you cant see my evil grin)
Its amazing the older we get the more revert back to being kids again.