Okay so due to that mod, and the gun i never got to play with, i decided to take the sting out of it by making something similar. used a Browning 50cal barrel i made last year as a base, did alot of chopping, stretching, etc and had to make the shroud from scratch. want to mimic the muzzle brake the one in game had but i am not sure, may tinker with alternatives.

I left the Browning 50cal barrel and its 50BMG round in the image as a size comparison of sorts. Hoping to produce something interesting if i can manage to stick to it. Been having alot of 'start something then stop working on it' moments lately.

Modeled in Google Sketchup 7.
Modeled by:

Enjoy~