The Verdict  PlayStation Plus and Warzone\n\n To reiterate, PlayStation Plus or Xbox Live Gold is not a prerequisite for enjoying Warzone 2.0 or the DMZ extraction mode. These exciting game modes are accessible to all players free of charge.

Yes, Warzone is free in Modern Warfare 3.\n\n The cost of buying Modern Warfare 3 for multiplayer, campaign, and Zombies, however, is a different story.