Includes: Base game Year 1 Pass: 16 cosmetics sets Year 2 Pass: 4 instantly unlocked reward items and 16 cosmetic sets Year 3 Pass: 16 cosmetics sets Customize your Security and Insurgent fighters from head to toe with the Year 1, Year 2, and Year 3 Passes, which includes themed weapon skins and gear sets! Engage in intense modern firefights in the definitive tactical FPS! Battle in the war-torn environments of a contemporary conflict through a series of intense co-op and PvP multiplayer modes. Feel every bullet in thrilling close-quarters combat as your team fights toward victory in intense co-op and PvP multiplayer modes. Team up in intense 8-player cooperative gameplay. Compete in objective-based PvP matches with up to 20 players. Fully customize your soldiers and weapons. Get immersed with realistic ballistics and stunning attention to detail. Unprecedented audio design with positional voice-chat for heart-pounding immersion.

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 "MY GAMES" tab and start downloading.