Server Installation Difficulty Level: Medium Time to invest: Depends upon knowledge of Arma 3 but should be a few hours with 20/20/20 breaks ** 20/20/20: Every 20 minutes, get up and focus on something 20 ft away for at least 20 seconds 1. Download Arma 3 Server files by going into Steam -> LIBRARY -> TOOLS  This will download to your Steam Library folder. (most likely in program files -> steam -> steamapps -> common)   OPTIONALLY you can install Ste