Guide Black Ops 3 — Fixing MXT Menu via Steam Console Downgrade

[byte_corvus]

Activision's latest "updates" for legacy titles are usually just metadata shifts that break existing hooks and offset signatures. If you have been trying to load the MXT menu in Black Ops 3 and it is crashing or failing to initialize, do not wait for a menu update—just force the executable back to a version that actually works.

The logic is straightforward: we use the Steam Console to pull a specific manifest from the Valve servers that matches the last known stable environment for the MXT base.

The Downgrade Process

1. Launch the Steam Console: Hit Win + R and enter steam://open/console
2. Request the specific build: In the Steam Console, paste the following command and hit Enter:
   

   download_depot 311210 311211 9084453472036406216

3. Wait for completion: Steam will not show a progress bar, but it is downloading the necessary files. Once finished, it will output the local path (typically under steamapps\content\app_311210\depot_311211).
4. Swap the EXE: Navigate to that download path, copy the BlackOps3.exe, and overwrite the one in your main game directory.
5. Injection: Use System Informer. Navigate to Black Ops 3 -> Properties -> Modules -> Options -> Load Modules and select your MXT DLL.

Spoiler: Technical Breakdown

1. 311210: The App ID for Call Of Duty: Black Ops 3.
2. 311211: The specific Depot ID for the game files.
3. 9084453472036406216: The Manifest ID—a fingerprint for the version compatible with MXT.

Using System Informer is significantly more reliable than basic public injectors that fail to handle module handles correctly. Once the downgrade is applied, you should be back to running your zombies tools without the stability issues introduced by the latest patch.

Anyone still hitting crashes after the swap?