In other words, if you own it on Xbox One, you'll need to buy it again for PC.
https://www.pcgamer.com/halo-the-ma...jEXVAymwo351MJEwfeWDSw5lxoJMpfOkNShd1vwIIwg6c
https://www.pcgamer.com/halo-the-ma...jEXVAymwo351MJEwfeWDSw5lxoJMpfOkNShd1vwIIwg6c