Series 3: Recon

Season 3: Recon is the third season implemented into Halo: The Master Chief Collection. The Season will debut on September 22, 2020, with the launch of Halo 3: ODST as part of the collection on Steam and Windows. Although launching alongside Halo 3: ODST, the cosmetic unlocks available focus on adding new skins for Halo 3's multiplayer alongside new nameplates and Firefight characters. This season was preceded by Season 2: Spark.

Season unlocks
The seasonal unlocks for Season 3: Recon take the form of the skins for weapons and visors in the multiplayer of Halo 3, Firefight character unlocks for ODST and ODST-themed nameplates for use in the menus. For The Master Chief Collection, the unlocks have been divided into 5 tiers of ten unlocks each. To progress a tier, all ten unlocks within must be unlocked. The season features over 80 unlockables, a departure from the 100 tiers seen in Seasons 1 and 2 due to the much shorter development time between releases.

Each unlock slot can be unlocked for - or  for Firefight characters - rewarded through the collection's updated rank scheme or the Challenges implemented in the prior Spark update.