Mr. Moderator dudes, Would telling how to get the gun be off topic?, and, if it isn't, do we actually want to reveal our secret?
And to Gameboy_rulz,
its not actually a glitch per say, only an addition that wasn't completed. Anyway taking out the Wraith in half a second is pretty sweet, and watching the bodys of 5 grunts go flying, from a single burst, does give a large measure of satisfaction. Thou I don't see how I could learn from it.
Now that I have accepted you Lord, You will remember my sins Nevermore