Why do I need the xbox one and series X versions of call of duty cold war installed?

From what I can tell, to access the Series X version of the game, you need the Cross-Gen bundle...once you buy that, you should then be able to download and install the Series X version. Without the cross-gen bundle it will, presumably, just install the XB1 version

From the Store page:

"For digital owners of the Call of Duty®: Black Ops Cold War Standard Edition, this upgrade will unlock the Call of Duty®: Black Ops Cold War Cross-Gen Bundle, giving access to the Xbox Series X|S version of the game. After upgrade purchase, search in the Xbox store for the Call of Duty®: Black Ops Cold War - Cross-Gen Bundle to install the Xbox Series X|S version of the game."

Hi!

Maybe you have the Xbox One version of COD Cold War and you see that message because the Xbox One version cannot be upgraded to Xbox Series X. You can find more informations about COD Cold War editions here:

Call of Duty: Black Ops Cold War Editions FAQ

Regards

Hi,

What version of the game do you own and how are you trying to upgrade it?

My understanding is that you need to purchase the upgrade directly via the store on the Series X.

Call of Duty: Black Ops Cold War Editions FAQ

https://www.microsoft.com/en-au/store/p/call-of-duty-black-ops-cold-war-cross-gen-bundle-u/9mxpqc207hnm/0010

This is the product that is the upgrade from Xbox one Cold War to series x version

Call of duty Black ops Cold war for Xbox one and Xbox series X.