Call of Duty: Modern Warfare's Season One update is live now on PS4, Xbox One, and PC. The free update includes four additional multiplayer maps, a new Reinforce game mode, and five more Spec Ops missions. Battle pass holders can unlock 100 tiers of rewards and the new Operator Mara.
Modern Warfare Season One Update Adds New Multiplayer Maps & Missions - GS News Update
You can start ranking up your Battle Pass now.