There has been one big gun missing from Halo: The Master Chief Collection all these years. Five years later, Halo 3: ODST will finally be complete.
Halo developer 343 Industries revealed today that ODST's Firefight mode will be added to The Master Chief Collection sometime this summer. It's coming to both the Xbox One and PC versions. ODST on PC is expected to launch sometime in the coming months -- probably shortly after Halo 3 -- and Firefight will likely be simultaneously released. On Xbox One, ODST has somehow been a part of Master Chief Collection for more than five years now, a make-good gift for the terrible state the bundle originally launched in. My, how time flies.
Firefight was Halo's first stab at cooperative horde back when that was the cool and novel multiplayer mode du jour. Gears of War 2 and Halo 3: ODST were some of the first big names to popularize horde mode, and that legacy still lives on. Firefight was adapted for Halo: Reach and Halo 5; Halo 4 dropped Firefight in favor of Spartan Ops.
Get the band back together. Pretty soon, wave after wave, all the Grunts and all the Brutes are gonna have to fall.