The first thing to do is fast-travel back to your base and interact with the Supplies Workbench. It should already be built as part of the starting objectives to expand your territory in Once Human . If not, unlock Essential Tools from the Crafting Memetic upgrade tree and build a Supplies Workbench.Attachments like sights, suppressors, grips, and flashlights can either be purchased or found via exploration. Vendors in each of the regional safe zones (Deadsville, Meyer's Market, etc) sell differ...