Why can't I play CODMW?

That game is not currently on Game Pass.

The modules are Special Ops, Multiplayer, Campaign and in some instances they are Pack 1 and Pack 2. These have all been downloaded and installed on my console but I've never seen anything specific for CODMW. Maybe I'm looking at things incorrectly but
how do I know whether CODMW has actually been installed on my console because evrytime I select open for CODMW, it jumps to the WZ splash screen..

Let me rephrase my question/concern.

From what I can tell, only the CODMW modules are being installed on my console rather than the game itself. The only game icon I've ever seen is for WZ. When I open WZ there is a scrolling msg in the top right corned saying an update needs to be installed
and I need to connect to the Internet.

Well, I am connected to the Internet and my XBOX isn't saying anything about an update for the game. So, as I have asked many times before, where in the world is the CODMW game I bought the disk for last week and why isn't my console recognizing the installation
of the game?

This all stinks of something rotten going on at Activision and they don't seem to give a rat's behind about addressing the issue any time soon.

Surely one would expect a separate icon for CODMW to appear under the TAB MY Games and APPS in my game console but nothing but WZ is showing. The title says CODMW but the game opens as WZ and then tells me to update it. I'm tired of playing "games" and wasting
my time trying to get this to work. There has to be a solution out there somewhere or Activision is breaking a lot of laws, one being theft by deception.

Thanks for everyone's responses but none of them have solved my issue or answered my question directly.

Cod mw warzone is the battle royale online only version of the game. Unfortunately, if you wish to play the campaign you will need to purchase the whole version of the game . Additionally, xbox live is mandate in order to play the warzone since its online
pvp mode of the game

To be able to play online you'll still need Xbox Live Gold. Even though the COD Warzone game is free.

Warzone is unfortunately only online.