The Callisto Protocol

With the release of the latest DLC, many glitchy achievements have appeared on xbox in three add-ons. Mainly for Xbox Series owners. Solutions for eliminating glitchy achievements associated with completing Infection and Extreme difficulty modes.

First solution (only worked for me for one achievement):

1. Quit the game. If the game hangs in Quick Resume, then turn it off (Disabling Quick Resume for a specific game is in “My Applications”).
2. Reboot the console.
3. Start a new game of the original campaign on maximum difficulty. Go through the first chapter (cutscenes can be skipped). When you appear in a prison uniform with the bars open, you will see an autosave icon. After that, go to the menu.
4. Start a new game+ in Infection or Extreme difficulty mode (depending on your mode). BE SURE to remember which save slot of the final run you chose to transfer weapons to the new game+.
5. At the beginning of the game, go to the first door of your ship and take the first audio recording. Exit the game to the main menu.
6. Load the save of the final escape selected in step 4. The achievement usually drops after loading is completed, but can also drop before the end credits begin.

Second solution:

1. Quit the game.
2. Turn off the Internet and go into the game.
3. Load the save with the final race and run to the final. As soon as the end credits begin, connect to the Internet. An achievement will appear during the credits.

Third solution (worked for me for three achievements):

1. In the main menu of the game, delete all unnecessary autosaves. You leave only the final runs you need and the manual saves you need.
2. Exit the game and delete the save from the console, go into the game and check if everything is saved correctly in the cloud, i.e. Are there any extra save files that you deleted? If there is, then repeat steps 1-2. If everything is clearly synchronized according to the saves left, then exit the game and delete the game.
3. Reinstall the game.
4. Start a new game+ in Infection or Extreme difficulty mode (depending on your mode). BE SURE to remember which save slot of the final run you chose to transfer weapons to the new game+.
5. Complete the first chapter and exit the game.
6. Disconnect from the Internet and download the game.
7. Go to the fourth chapter ("Residential Dome" - level with sewerage). If you play in infection mode, then you should also reach the fourth chapter without dying. Since this is at least your second game in glitched mode, try to contact the game store as little as possible. There is a possibility that it is because of certain stores that the game crashes.
8. Go to the menu and ALWAYS load the final race that matches point 4.
9. Run to the final. As soon as the end credits begin, connect to the Internet. An achievement will appear during the credits.

Fourth solution

1. Delete the entire game with all DLC and reinstall everything again.
2. Start a new game in the desired mode and complete everything in one go.