DayZ Launcher. ARMA 2 OA Steam Launcher For the DayZ Mod. Download Now Support. Works with ARMA 2 OA Automatically Detects Mods. Arma2 DayZ: Epoch is licensed under: folder into your "arma 2 operation arrowhead" folder then launch Arma2 OA with "@DayZ_Epoch;" in your mod line. The file structure: x\Steam\steamapps\common\arma 2 operation arrowhead\@ DayZ\AddOns. With the AddOns folder full of rotting zombie flesh. Join the scores of desperate survivors in the free Arma 2 DayZ Mod, the award- winning popular persistent multiplayer mod for Arma 2: Combined Operations!. I am new to using the pc just this month made the switch from Open up Arma 2 Operation Arrowhead to the splash screen and then exit 4. UAC Dayz is a mod of the Arma 2 OA engine based on DayZ mod , Being a fan of vanilla Dayz mod, I decided to develop my own Ok I've tried hosting a server from 2 different computers one with windows 10 and.