This amazing franchise coming to pc as a whole is a huge revival for Halo in general; why not make the most out of this return.
Halo is popular as ever and I suggest having cross-play support only because of the massive increase in player base and accessibility this will provide.
In addition, having servers that split users by their devices. Since Xbox currently has keyboard and mouse support, and in the event of cross-play, servers could be created that split users between controller and keyboard with mouse. This will maintain an even playing field through capabilities of the users device. I prefer this rather than Fortnite’s abnormal cross play with PC users absolutely destroying people on console using controllers as well as mobile players using their touch-screen.
Help me out with this my fellow Halo-fans I want this game to blow the hell up. The competitive cababilities of this amazing fps shooter could very well take Esports by storm.