Developed by the studio that started it all, Infinity Ward delivers an epic reimagining of the iconic Modern Warfare series from the ground up.First Strike is the first downloadable content (DLC) pack for Call of Duty: Black Ops. The underlying 'content' for Warzone has already been installed, but to trigger Warzone, you need to install the 'packs.' Like the Multiplayer portion, there's 3 'Multiplayer Packs.' Aug 31, 2020.Prepare to go dark in Call of Duty®: Modern Warfare® The stakes have never been higher as players take on the role of lethal Tier One operators in a heart-racing saga that will affect the global balance of power. When you install Modern Warfare, don't go to the 'Warzone' tab.