Thanks for the introduction to something I'd never known of before, but have experienced. ON many occassions I have controlled the course of a dream through what seemed to be conscious thought, or even terminated a dream that I found to be disconcerting. Didn't realize there was anything special about that.
Oh, as for the gun thing, every time I have a dream with one of my guns jamming, misfiring, etc. I take it as a subconscious reminder to put in some range time, clean and lube the guns, and get new ammo in the mags that I now know function fine. not exactly a good scientific response to a dream, but there are a lot worse things I could do...