Huge Halo: MCC Update Adds Flood Firefight, Campaign Cross-Play For Halo 3 And ODST - GameSpot
Halo: The Master Chief Collection will get cross-play this year | PCGamesN
Halo: The Master Chief Collection gets campaign cross-play, other new features - OnMSFT.com
Halo: The Master Chief Collection to add crossplay this year
Halo on Twitter: "Right in time for the addition of crossplay, Halo 4's arrival, and Season 4 of MCC! Grab Halo: The Master Chief Collection now for 35% off, on @Steam. 🛒
Does Halo: The Master Chief Collection have cross-play? | Shacknews
Halo: The Master Chief Collection' adds 'Halo 3' cross-play and Floodfight
Halo MCC Reach for PC - Cross play and progression Steam/W10 detailed, PC requirements detailed and a looks at customization and seasons | ResetEra
Are Halo Games Cross-Platform (And Which Ones)? - Game Freaks 365