Alright so I am new to unity, and was curious how do I import weapons that work, as I want to create a FPS game. Thanks…
Create a model in a 3d modeling program, then export as one of the supported types (fbx, max…etc). This will just be a mesh, thus will not ‘do anything’. There is no magic button, there is a good amount of coding that needs to happen to make weapon do something as simple as fire. Check out some tutorials offered by unity.