As the Minutemen continue to make their heroic return to the Commonwealth thanks to the help of Fallout 4s protagonist, the Sole Survivor, they decide that in order to stand against rival factions and the might of the Brotherhood of Steel, theyre going to need bigger guns, and what better gun than a literal artillery barrage? Old Guns provides players with new defensive capabilities for attack in Fallout 4, as well as some pretty loot for their hands to claim.