Now THAT'S a big gun! Orc Special Weapon are an elite unit, obsessed with huge, highly customized weapons, capable to wipe out an entire squad of infantry in a hail of fire.
They consider themselves to be at the top of orc society, being the wealthiest of their entire warband. These guys just love to boast and brag about their shiny guns, heavy armor and impressive amounts of teef that they gathered during battles and various clan brawls.
That being said, their firepower is indeed powerful, and their role on the battlefield is truly indispensable.