Boot up your PS3 with the "Black Ops" game disc in the drive.
The PlayStation 3 (PS3) version of "Call of Duty: Black Ops" comes with three downloadable map packs. Each map pack contains one map for playing "Nazi Zombies," a game where you and a group of friends must hold out against waves of rampaging zombies for as long as you can. You must have a valid credit or debit card if you want to download the map packs, as well as have your PS3 connected to the PlayStation Network via its Ethernet connection.
Connect to the PlayStation Network if your PS3 does not do it automatically. Connect its Ethernet port to a working Internet router via an Ethernet cable to connect it to the Internet.
Scroll to the PlayStation Network icon on your PS3's main menu and then select the PlayStation Store icon. They will be labeled for your convenience.
Select the "Add-Ons" option, then select "Disc-Based Game Add-Ons."
Select the "Disc-Based Game Add-Ons A-L" button to bring up a list of available titles. Find and select "Call of Duty: Black Ops," which will then show the three available map packs.
Select the map pack you wish to download and then select "Buy Now." You will be prompted to enter in your credit or debit card information and then confirm the selection. Map packs costs $15 each.
Wait for the map pack to download and install itself on your hard drive. Repeat with each map pack you desire. Boot up the game when finished and the maps will be present.
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