The "Arma 3 Preset Black Lion 03 03 Testovaci.html" file is a configuration file designed for the Arma 3 Launcher to synchronize mod sets. "Testovaci" indicates this is a testing or beta preset, likely for a community unit named Black Lion, which can be imported via drag-and-drop or the launcher's mod tab. Learn how to import these files via the YouTube video YouTube . How To Import Arma 3 Mods Via HTML File