COD Warzone Diskless Launcher

1. First, make a folder and rename it to "ProgramData" inside Battle.net installation directory.

2. Then, cut these folders "Battle.net", "Blizzard Entertainment", "Electronic Arts" from "C:\ProgramData" and paste them inside "Battle.net\ProgramData" folder that was created before.

3. Make a new batch file inside Battle.net installation directory and rename it to "Battlenet Launcher.bat". Then copy and paste this script into the batch file and don't forget to save it :

@echo off
mklink /J "C:\Programdata\Battle.net" "ProgramData\Battle.net"
mklink /J "C:\Programdata\Blizzard Entertainment" "ProgramData\Blizzard Entertainment"
mklink /J "C:\Programdata\Electronic Arts" "ProgramData\Electronic Arts"
start "" "Battle.net Launcher.exe"
exit

Note :
COD Warzone uses game ports.

TCP
3074,27014-27050

UDP
3074,3478,4379-4380,27000-27031,27036