How to downloadYou must have access to the alpha test to download this game, are you invited? If You Are Invited By Activision To Play This Game You Can Easily Download This App + OBB File From The Link Below. Anyone who hasn't been invited to play the closed alpha test by Activision then there is no way to download the game yet, such players will have to wait until the open alpha test runs for Warzone 2.0.
The link includes a zip file that contains the Warzone mobile app and an OBB file, which after downloading will unzip to your device.
To download this zip file : tap on the file given below> Separate page will open> Download the app + OBB file.