To play the actual Modern Warfare II on your phone, you must use or remote play rather than a native APK:
You can securely download it directly from the official Google Play Store. Call Of Duty Modern Warfare 2 Apk Obb For Android
Installation & Legality Notes (practical but brief) To play the actual Modern Warfare II on
This almost always means the OBB file is in the wrong folder . Ensure the OBB folder is directly inside Android/obb/ . Call Of Duty Modern Warfare 2 Apk Obb For Android