Get the High Power pack, an explosive bundle of 5 powerful weapons that are usable in both single player and Spies vs Mercs! Features Weaponry Includes: AC S12 Shotgun GC36C Assault Rifle MP5-10 SMG PP-19 Black Market SMG USP45 Hand Gun

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.