The Rock addon

Lets make this briefing sweet and short, your mission is to enter the "Rock", and destroy it, wait...incoming message, a group of terrorists have taken over a city just south of you, and are armed to the tip. Your new mission is to get off the "Rock", go into the city south of you, and gather all key cards to shut down their training facility. To play, place it in your base\maps folder. Start a new campaign and use the console (`) command "map" to open it.