Alpha legion heavy bolter havoc

During the Stygian wars the Alpha legion made extensive use of the heavy bolter.  Using it offensively with suppression fire that enabled the Alpha legion and their Stygian allies to advance.  Defensively it often was a lynchpin in a defensive strongpoint.  The heavy bolter in the hands of infiltrating Alpha legion kill teams was a weapon of terror that saw Alpha legion spec ops units incredibly successful.