User blog comment:Jimeee/Bethesda Games Studios: "Moving to our next adventure"/@comment-6896023-20130416181344/@comment-26474238-20130416182903

Except, the manufacturing of technology and guns are explained thoroughly throughout the original two games. You must remember that Fallout is about the rebuilding of post-apocalyptia. For perfect examples, look at the: Gun Runners, Vault City, NCR, Mr. House, The Master, The Calculator, BoS, Enclave, Shi, Cyphers, etc. etc. etc. All of those groups I've just mentioned have the means to produce new technology, with everything from assembly lines and pre-War schematics, to left-over resources and hidden military caches spread around during the Great War.