Summarize:

Black Ops II, and select the option to play in multiplayer mode. Black Ops II Nuketown Zombies Add-On." " " Nuketown Zombies currently retails for $4.99, but prices are subject to change at any time. Your PS3 will begin downloading Nuketown Zombies. Black Ops II. Nuketown Zombies will now be fully integrated with your game.
Power on your PS3 gaming console and sign in to the PlayStation Network. Launch Call of Duty: Select "Store" from the multiplayer menu, then select "Call of Duty: Select "Add to Cart," then select "View Cart. Select "Proceed to Checkout," then select "Confirm Purchase. Select "Download All" at the prompt. Wait for the download to complete, then select the option to exit the store. Close and reopen Call of Duty: