Things You'll Need
Instructions
Sign into the PlayStation Network using your email address and password. Click "PlayStation Network Store" under the "PlayStation Network" tab in the PS3 Start menu.
Select "Browse Games" and click "Games A-L" to narrow the list of games down. Scroll through the list until you find "Call of Duty: Black Ops."
Click "Buy Now" and use your credit card or PSN card information to purchase the game. After the purchase is complete, the download will start and the "Call of Duty: Black Ops" icon will appear under the Games tab on the PS3 Start menu.