Note: This is the standard method for games like GTA: San Andreas. Since BO4 doesn't exist, this is purely theoretical.
Before downloading anything, you need to understand Android’s architecture.
Because these are non-official or community-driven mobile versions, the features differ significantly from the official console release: Call Of Duty Black Ops 4 Apk - Obb For Android
Because the original PC game does not exist on Android, any file claiming to be “Black Ops 4 APK” falls into one of three categories:
Fake installers often force you to complete endless "human verification" surveys or download unrelated applications that flood your phone with intrusive ads. Note: This is the standard method for games
If you still want to search for the file, use this checklist to avoid viruses:
Instead of looking for a fake port, you can play official games that include Black Ops 4 content: Call of Duty®: Mobile - Apps on Google Play If you have a legitimate large Android game
Because there is no official full port of Black Ops 4, many users choose the official mobile alternatives, which provide a similar, if not superior, mobile experience.
Low-quality copies that do not feature the real console gameplay.
If you have a legitimate large Android game that uses APK + OBB files (for example, from a trusted source like the Play Store or a verified developer), here is the general installation process.
I can recommend the or legitimate games that fit your hardware perfectly. Share public link