If you're looking for a legitimate Call of Duty experience on mobile, you should stick to the official titles: Call of Duty: Mobile
Official versions of Call of Duty: Vanguard do not exist for Android, and any "patched" APK files found online are fraudulent, posing significant security risks to devices. The title was released exclusively for console and PC, though Vanguard-themed characters and maps are officially available through Call of Duty: Mobile Warzone Mobile call of duty vanguard para android apk patched