Pipe weapons are seen in this game as "bad" weapons. But a major problems comes with this, raiders were never a fearsome encounter, because of that. The damage of pipe weapons are still below other weapons but they will deal now a whole edge more damage and make raiders though encounters. Pipe weapons have a bad accuracy and range, but their bullets are still deadly.
Because of the changes made to pipe weapons, the 10mm Pistol had it's damage increased and is still below the weapon "Deliverer" damage wise.
This module increases the difficulty.