Downloading an APK and OBB for a commercial game without purchase is technically piracy. EA no longer sells Battlefield: Bad Company 2 for mobile, and the official servers have been shut down. However, copyright law still protects the game's assets.
While a mobile port was released years ago for iOS and Android, it was a scaled-down version of the console experience and has not been updated to run on modern versions of Android (like Android 13 or 14). Server Status: Battlefield Bad Company 2 Apk Obb Download
You can find the original 2011 Android port on various community archive sites. Downloading an APK and OBB for a commercial