Per the modern/futuristic weapon rules included in "Adventurer Option" (and in Esoterikon), consider: automatic weapons (submachineguns as handguns, assault rifles as high-cal rifles, etc.) can spray fire, causing one hit to everyone in the line of fire. Save Blast to avoid damage (e.g. by dropping prone), cover/concealment bonuses apply. They must then automatically reload. Chainguns and the like can do so twice before reloading.