SMITH: You may deploy your portable workbench once per mission to add a new effect to an existing weapon (you can choose a premade weapon tag or negotiate a custom effect with the referee). The effect will be successfully added if you leave the weapon at the workbench, acquire three integral but difficult-to-reach components, and return to combine the components and weapon. The referee will tell you what and where the components are; they are usually scattered throughout the mission area. You may also employ a similar process of deploying your workbench and collecting materials to forge new pieces of armor.