Activision has unveiled new information about an upcoming open-world role-playing game. The company also showcased an immersive Korean urban environment in London and Los Angeles for Call of Duty Modern Warfare IV. The event in Sydney for the game featured multiple announcements, and a method to unlock early access on PC has been discovered. Call of Duty Modern Warfare 4's multiplayer launch occurred without open matchmaking, and players are sharing tips on obtaining electronic gadgets in the DMZ. Activision is reportedly developing a new Call of Duty series.