I own COD Modern Warfare and now game is missing and wants me to pay again.

Is the game still in your purchase history for your Microsoft account? You can try downloading the game from the purchase order page. Also, check for updates to the Store and other apps. Xbox app was just updated and games we own are sometimes installed
there instead of the Windows Store. This might be an Activision account isssue, I would recommend contacting Activision Support, linked below, to see why your account is not showing ownership of the game.

External Site - Activision Support

https://support.activision.com/

Hello Shannon 1976,

Are you talking about COD Modern Warfare (Xbox 360) or Modern Warfare 2019?

In case is the newest one, I found this article that maybe can be of help to you : https://www.gamerevolution.com/guid...c-packs-error-you-do-not-own-the-dlc-pack-fix

It's strange. Not too long ago everyone was tired of WW2 era games and were happy with Modern Warfare era games. Now people are tired of Modern Warfare games and I miss the WW2 era games. Going back to Battlefield 1943
on XBLA is refreshing and fun and enjoy it a lot more than CoD.

Games I legitimately miss are multiplayers. The population will never be the same and most old games are full of 'hackers'....COD 4: Modern Warfare, Modern Warfare 2, World at War.

I still have my 360 and go back to games like Red Dead Redemption, Borderlands and Far Cry 3...So I can't really miss those yet.

Oh hell yes I would looooovvvveeee a new WW2 game. I seen that activision is going to have three companies making COD now. One for ghosts, one for black ops and one for modern warfare. So basically we are going to have three games based on modern combat.
What are trying to do. Drown the market. And battlefield could do both. They always wanted to go yearly like COD, so why do modern one year and WW2 the next. Oh how I miss my M1 Garand!