No direct impact on MW2 or DMZ
The announcement is about Modern Warfare 4 multiplayer content: launch maps, 6v6, Ground War, Gunfight, and Shipment arriving after launch. It does not mention MW2 or DMZ at any point.
That means there is no basis in this post to claim that MW2/DMZ game data changed, that Ricochet was updated, that a ban wave began, or that existing software stopped working. The reverse is also true: the post is not evidence that any product is currently undetected or safe to use.
For someone playing MW2 or DMZ, this announcement alone is not a reason to pause software or expect an update. Using any cheat still carries risk, regardless of whether another Call of Duty title has announced maps.
What the MW4 announcement actually confirms
The source lists 12 Core 6v6 maps at launch, three 32v32 Ground War maps, four 2v2 Gunfight maps, and Kill Block for 3v3 and 10v10 Gunfight. Shipment is listed as a post-launch 6v6 map arriving on October 27.
Those are gameplay and content details for Modern Warfare 4. They may matter if you intend to move to that game, but they do not provide a technical update on MW2, DMZ, or software built for Warzone 2.
Do not assume cross-game compatibility just because titles share a franchise. Clients, supported modes, protections, and internal game data can differ. A product made for one game should not be treated as compatible with another unless its provider explicitly confirms that support.
What MW2 and DMZ players should do
Check the status of the exact product you use, for the exact game you play. Fecurity for Warzone 2 and Dullwave for Warzone 2, for example, are listed for Warzone 2—not for the newly announced MW4. A feature count does not establish support for a future Call of Duty release.
After an actual patch to your game, wait for a current provider status rather than launching immediately without confirmation. The safe launch checklist covers basic pre-launch precautions. For the wider reasons cheats get exposed after updates or through in-game behavior, read why cheats get detected.
When you should reassess
Reconsider your launch decision when there is a real update for MW2 or DMZ, a confirmed anti-cheat change, or a provider status update for the product you use. Those are relevant signals; a map reveal for MW4 is not.
If you plan to switch to Modern Warfare 4, do not use products intended for Warzone 2 on the assumption that they will work there. Wait for explicit support information first, then review product status, update history, and requirements with the cheat selection checklist.
Original source developer announcement