Hi
When I want to play Halo 3 ODST it’s showing the window with message ‘Halo 3 odst is not installed’ when it is. I was buying DLC. I have got halo mcc from xbox game pass and I wasn’t buying this. I was doing a ‘soft’ reset and I was reinstalling the game 2 Times. I don’t want to do a hard reset. Can you help me? P.S Sorry my English skills are so bad 
Hello. We’d like to help resolve your issue. Can you send us a screenshot of the error message you receive when trying to play ODST please?
Thank you.
> 2533274831893561;2:
> Hello. We’d like to help resolve your issue. Can you send us a screenshot of the error message you receive when trying to play ODST please?
>
> Thank you.
Hello
Thank you. I was sanding screenshot to your xbox live account.
The game recognizes that you own ODST. However, MCC uses a system called Intelligent Delivery to allow you to install the different games in the collection separately. Navigate to Options & Career > Settings > Gameplay > Change Installed Games and ensure that ODST is included (tick the little box on it). You’ll see an installation progress bar in the upper right of the main menu. Once this completes, the game will notify you that ODST is ready to play. If you change your voice language, it will also make ODST and other installed games temporarily unavailable while it installs the language content. I see from your screenshot that you have an installation in progress. Please let that complete and then ensure ODST is included in your installation. This should solve your issue.
> 2533274831893561;4:
> The game recognizes that you own ODST. However, MCC uses a system called Intelligent Delivery to allow you to install the different games in the collection separately. Navigate to Options & Career > Settings > Gameplay > Change Installed Games and ensure that ODST is included (tick the little box on it). You’ll see an installation progress bar in the upper right of the main menu. Once this completes, the game will notify you that ODST is ready to play. If you change your voice language, it will also make ODST and other installed games temporarily unavailable while it installs the language content. I see from your screenshot that you have an installation in progress. Please let that complete and then ensure ODST is included in your installation. This should solve your issue.
> 2533274831893561;4:
> The game recognizes that you own ODST. However, MCC uses a system called Intelligent Delivery to allow you to install the different games in the collection separately. Navigate to Options & Career > Settings > Gameplay > Change Installed Games and ensure that ODST is included (tick the little box on it). You’ll see an installation progress bar in the upper right of the main menu. Once this completes, the game will notify you that ODST is ready to play. If you change your voice language, it will also make ODST and other installed games temporarily unavailable while it installs the language content. I see from your screenshot that you have an installation in progress. Please let that complete and then ensure ODST is included in your installation. This should solve your issue.
OK. Game is working. I was just changing MCC to English version and I was waiting to end of downloading.
THANK YOU VERY MUCH!!!