Typically, you extract the contents to a folder and run a custom executable (like for multiplayer or for zombies) rather than the standard Steam launcher. Safety Note:
The BO2 Offline Client is a collection of modified game files—often bundled with "Redacted" or "Plutonium" launcher components—that bypasses the game’s standard Steam authentication. bo2.offline.sp.mp.zm.client.v3.7z
BO2 offline client, BO2 Zombies offline, Plutonium BO2, BO2 private server Typically, you extract the contents to a folder
No risk of being banned from official servers (as it doesn't connect to them). : BO2 Zombies offline
: Projects like Plutonium or Redacted often include fixes for engine leaks, improved tick rates, and the removal of round caps in Zombies. Technical Details & Installation
Wish to use console commands or mods that are restricted on official servers.