Located just west of the Sunset Sarsaparilla Headquarters next to a burning campfire. It's guarded by 3 to 5 Fiends, typically two with energy weapons and two to three with melee weapons. Although it's in possession of Fiends the weapons shipment is still marked red so it needs to be stolen. You will not receive negative Karma for doing so. Also, if you find the weapon shipment before you start the quest or after you complete the quest you will not be able to remove it from your inventory. That means that you are not able to sell it either.