First and foremost, Call of Duty: Black Ops 2 is a game developed by Treyarch and published by Activision. The official release of this game was on console platforms (PlayStation 3, PlayStation 4, Xbox 360, Xbox One) and PC (via Steam). There hasn't been an official release of this specific title on Android.

This information should help guide you, but always prioritize security, legality, and the potential performance of games when considering APK and OBB installations.