Assuming you have found a legitimate-looking file set online (approx 2.5GB total).
For large Android games, the installation is split into two parts:
Using your file manager, navigate to: Internal Storage > Android > obb call of duty black ops 3 apk obb for android free install
If you are looking for an authentic Call of Duty experience on Android, the following official titles are available:
I need to investigate further. I'll open some of the more promising-looking results to gather more details. results show that there are multiple apps with "Call of Duty Black Ops 3" in their name, but many seem to be unofficial or from unknown developers. The AndroidRank page shows an app from "Vomica Studio" with 500,000+ installs, which might be a fan-made or unofficial game. The TapTap pages seem to be for the console/PC version, not mobile. The Raphblog page mentions "Call of Duty Black Ops Zombies APK" from Activision, which might be a legitimate mobile game. The LDPlayer page also mentions "Call of Duty: Black Ops Zombies" which was removed from some regions. Assuming you have found a legitimate-looking file set
A install promises the full game experience on your phone. However, it is crucial to understand that there is no official port of Black Ops 3 for Android developed by Activision or Treyarch. The Reality of "Free Install" Files
Tap on the downloaded APK file and install it, but do not open it yet. results show that there are multiple apps with
Call of Duty: Black Ops 3 Android APK + OBB Installation Guide
Highly customized versions of older mobile games (like Call of Duty: Strike Team or Black Ops Zombies ) reskinned to look like Black Ops 3.
Once you've successfully installed Call of Duty: Black Ops 3 APK OBB on your Android device, you can expect a relatively smooth gaming experience. However, keep in mind that the game's performance may vary depending on your device's hardware specifications.