I bought AOT2 on disc and it comes with the final battle upgrade pack but my installation...

Hi, I hope you're doing great out there. I am an Independent advisor and I am here to help you in regard to your concern.

We may need to install the game digitally. Please follow the steps below:

1. Cancel the installation and remove the disc.

2. Perform a powercycle on your console.

​​​A. Turn off your console by holding the Xbox button on the front of the console for approximately 10 seconds. The console will turn off. ​​​

B. Turn your console back on by pressing the Xbox button on the console or the Xbox button on your controller. ​​​

3. Launch Xbox app on your phone and search for the game.

4. Click the game and choose "Download to Console"

5. Wait for the game to install completely before inserting the disc to play it.

Try going to the Microsoft Store page for the game and downloading it through there, it will pull the download from the internet rather than from the disc. As long as you have your disc in your console, you should be able to download and play it from there

I installed the HD texture packs first, then disc 1 and finally disc 2. No problems on my end so far.

I bought these discs separately. They didn't come together like the Game of the Year edition. The second disc is all it says it is, an expansion pack. This disc simply installs Shivering Isle and Knights of the nine but not the actual game. I've tried installing
the expansion pack first and then the actual game but still the content does not work.

Already did the multiple times. The problem with Destiny 2, is that it will only install the upgrade version from disc or online. From the disc, it comes up with a screen about the upgrade and you either upgrade or it cancels it.