Originally posted by pugsx
I would guess that its the 1.02 retail update nothing more nothing less.
1.02 are the debug retail B'ops .pkg's (correct me if im wrong) these can be used in a variety of ways in conjunction with a proxy server, extracting certain files & placing them into a current b'ops .pkg will allow you to expoit glitches that were previously patched, or reset your account back to zero (useful if you did the 15th prestige hack) & it will also allow you to mod zombies.