This is my first upload, so forgive me if something isn't right..
Anyway, this is a modification to Blade Scraper's Mossie. I've installed 4 machine guns and 4 cannon, activated via the 3pos switch. I tried to make them accurate with regards to rate of fire and muzzle velocity, and then spent a great deal of trial and error in getting them harmonized half-decent and adding slight fudge-factors in an effort to attain some degree of realism.
Hopefully it adds a bit more fun factor to an already great model.