While the Redacted BO2 client is no longer maintained, you can still download the newest version at http://redacted.se Two things to keep in mind: Redacted was designed not to work with pirated versions of the game. If you use Skidrow, nosTeam, or other pirated versions expect many errors and no support. The Redacted client comes as is. There are known bugs that were never patched. If it works for you, great. If not, there is little that can be done.