Hi, my name is Neil, I'm an independent adviser and a Windows 10 user like you.
I thought the same thing when I bought the Master Chief Collection myself too!
What I didn't realise is that the release of the games is staggered throughout 2019/2020. They are being worked on and 'polished' by different studios, along with 127 multiplayer maps.
The original release schedule looked like this:
Halo Reach: December 3, 2019
Halo: Combat Evolved Anniversary: March 3, 2020
Halo 2: Anniversary: May 12, 2020
Halo 3 & ODST: Unknown
Halo 4: Sometime in 2020
You can see this here at PC Gamer: https://www.pcgamer.com/uk/halo-the-master-chie...
So although they are currently missing, they will be added to the collection shortly and you will own all of them as they get added. They will all be definitely added in 2020.
And I 100% agree that this was not made very clear at the time I bought the games and it doesn't sound like it is any clearer now still since you obviously didn't know about the staggered release either.
The description at the Microsoft Store reads:
"For the first time, the series that changed console gaming forever comes to PC with six blockbuster games in one epic experience. This bundle includes all titles in the collection that will be delivered over time, beginning now with Halo: Reach and ending with Halo 4 in 2020."
So as you can read it does state that the games will be released 'over time' and finishing with Halo 4 in 2020, but buying the pack you would expect them all to be already included as we are in 2020.
So I can only apologise for the confusion. I am waiting for the releases myself! :|
However, I hope this explains why they are currently missing from your collection. At least you know it's not a fault at your end.
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