Call of Duty: Modern Warfare in 2019 delivered a very different take on Call of Duty’s multiplayer. With the sequel’s release fast approaching, here’s everything you need to know for Call of Duty: Modern Warfare 2. Call of Duty: Modern Warfare in 2019 delivered a very different take on Call of Duty’s multiplayer. With the sequel’s release fast approaching, here’s everything you need to know for Call of Duty: Modern Warfare 2.