Call of Duty Game Keys

Go to: http://store.steampowered.com/ and download STEAM client
Click "Install Steam" (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don't have).
Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process.
After successful code verification go to the "LIBRARY" tab and start downloading.

The Call of Duty: Black Ops III Multiplayer Starter Pack allows you to experience the ranked Multiplayer game mode of Black Ops III. This is a Multiplayer-only version of Black Ops III that has limited content. See below for more detail. The Multiplayer Starter Pack gives you access to Public Ranked Multiplayer matches and features including Weapon Paint Shop, Gunsmith, Arena, Freerun, Theater, and the Black Market. Features NOT included in the Call of Duty: Black Ops III Multiplayer Starter Pack: Zombies game mode Campaign game mode Ability to play in Multiplayer custom games Ability to Prestige (your level will be capped at 55 in the Starter Pack) Access to mod tools or modded content (once released) Access to unranked server browser (once released) Ability to Fresh Start your profile The ability to access Dead Ops Arcade II and Nightmares mode