This guide shows you the location of the blueprint called which you can get from a side quest called 'The Prodigal Son' Location: Slums Crafting Components: 1x Metal Parts, 1x Duct Tape, 1x Nails, 2x Chemicals, 1x Power Cable Effects: Adds Level 2 Impact to Pipe, Police Baton, Crowbar, Military Shovel, Wrench, Small Hammer, Pick, One-Handed Axe, and Baseball Bat. Video guide: http://youtu.be/YvVQHYlDJ9I
