The Perks system changed compared to past games. This allows the player to unlock new weapons and have attachments shared between weapons of a platform and universal attachments that will be shared for all weapons in the game. Now weapons are grouped into “Platforms”, allowing for complete control over the weaponry that the player bring into matches. One of the big changes is the complete revamp in the Gunsmith.

The Multiplayer of Call of Duty: Modern Warfare II brings many changes compared the previous Call of Duty: Modern Warfare Multiplayer. Multiplayer ' Infinity Ward brings fans state-of-the-art gameplay, with all-new gun handling, a new Gunsmith, and a suite of other gameplay and graphical innovations that elevate the franchise to new heights.' - Description Campaign ' From small-scale, high-stakes infiltration tactical ops to highly classified missions, players will deploy alongside TF141 in a globe-trotting single-player campaign.' - Description On September 15th, 2022, on Call of Duty NEXT, Infinity Ward Officially revealed the Multiplayer of Call of Duty: Modern Warfare II along with the new Call of Duty: Warzone experience, called Call of Duty: Warzone 2.0. On August 16th, 2022, it was revealed that the campaign would release on October 20th, 2022. On June 8th, 2022, the World Gameplay Reveal trailer was released.

On May 24th, 2022, a new trailer called 'Artwork Reveal' was released and announced the release date for October 28th, 2022.

On April 28th, 2022, Infinity Ward revealed the logo and officially announced that the name of the game would be Call of Duty: Modern Warfare II.

At that time, the official title had not been revealed yet. In a post on the Call of Duty blog, it has been announced that the Call of Duty title of 2022 it would be a sequel of Call of Duty: Modern Warfare released in 2019 and also a new Call of Duty: Warzone experience also would be in development, both led by Infinity Ward. Call of Duty: Modern Warfare II had its first confirmation official on February 11th, 2022.

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