Does MW2 game share properly

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.
I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this Adin

Additional information is needed, please tell me:

What console do you have?
Is this happening only with this game or if you try a different game something similar happens?
What’s the exact message that you’re seeing when you try to play multiplayer?

And, what did you tried so far to fix this
In that way I can advise you different things or how to proceed

Finally got it to work. Thanks again for your help.

Other add-ons should be available inside the game but there are add-ons that can't be shared as well.

Can you please ask your friend to visit you in that way he can try to access his account on your Xbox then try to install and launch it from there using his account?

It should work. There's only 1 game, Elder Scrolls Online, that it doesn't work.