-Install the repack with multiplayer files and/or ZLOrigin/ZClient option selected

-In latter case two installers will be run at the end of the repack installation. Otherwise you will find those in _Redist folder

-Install ZLOrigin, but DO NOT RUN it yet and close it’s window/tray icon when if it launches

-Install ZCLient and accept ZLO certificate, allowing the multiplayer support

-Register a new account on this site: https://zloemu.net/reg

-Enter your new credentials in ZClient and login, then minimize the window

-Run ZLOrigin via created desktop icon – when logged in ZCLient, ZLOrigin logins you automatically

-In “My Games” section right click on Battlefield 4 and select “Check for Update”. Then wait for ZLOrigin to complete verification (it may update a few .exe/.dll files)

-After verification/update is complete, run the game via ZLOrigin and go to server list for multiplayer

-You can always play in singleplayer offline mode too – just close ZLOrigin and run “Battlefield 4 – Offline” icon on your desktop

-More information on ZLOrigin available here: https://zlogames.ru/index.php?/topic/10090/