Season 2: Spark
From Halopedia, the Halo wiki
Season 2: Spark was the second Season implemented into Halo: The Master Chief Collection. The Season debuted on July 13, 2020,[Note 1] with the launch of Halo 3 as part of the collection on Steam and Windows. Although launching alongside Halo 3, the cosmetic unlocks available focus on adding new Skins for Halo: Combat Evolved multiplayer alongside new nameplates. This season was preceded by Season 1: Noble and is followed by Season 3: Recon with the launch of Halo 3: ODST for PC on September 21, 2020. The season's logo is a stylised representation of 343 Guilty Spark.
Season 2 was intended to release earlier in the year - likely coinciding with the release of Halo: Combat Evolved Anniversary for PC in February 2020 - though ended up delayed due to unforseen development issues (likely including the COVID-19 pandemic).
Seasonal events and challenges
Season 2 saw the launch of the Challenges feature in The Master Chief Collection. To celebrate the launch of Halo 3, two limited-time challenges were introduced to unlock the Acrophobia Skull and Alliance Nameplate. Additionally, a number of season-long challenges were introduced to earn the gold skins for the Assault Rifle, Shotgun, Pistol and Sniper Rifle alongside XP and Season Point rewards.
The seasonal unlocks for Season 2: Spark take the form of the skins for weapons, vehicles and visors in the multiplayer of Halo: Combat Evolved and nameplates for use in the menus. For The Master Chief Collection, the unlocks have been divided into 10 tiers of ten unlocks each. To progress a tier, all ten unlocks within must be unlocked.
July 14 patch notes (Version 1.1698.0.0)
Season 2: Spark launched alongside the addition of Halo 3 to The Master Chief Collection, alongside the addition of the Forge and Theater modes found in Halo 3, Halo: Reach and Halo 2: Anniversary to the PC versions of the game. This change accompanied a number of bugfixes and quality-of-life updates.
Resolved Community Issues
Global (All Platforms)
Halo: Reach (All Platforms)
Halo: Combat Evolved (All Platforms)
Halo 2 (All Platforms)
Halo 2: Anniversary (All Platforms)
Halo 3 (All Platforms)
July 29 patch notes (Version 1.1716.0.0)
A small hotfix was released for MCC on July 29, 2020.
MCC Hotfix on July 29, 2020
Today, July 29, 2020, we are releasing a hotfix to update several issues that Challenges were encountering. A breakdown of the update sizes and bug fixes can be found below:
Game Install Size and Version
Please see the information below to ensure you have proper disk space to install the latest update.
The latest version of the game is 1.1716.0.0.
Resolved Community Issues
Today’s game update consists of targeted fixes for the updated Challenge system that was added with Halo 3’s release and game update earlier this month on July 14. Below is a breakdown of the specific fixes that have come with today’s update:
Starting July 29, at 5pm Pacific, until the launch of Halo 3: ODST on PC, you can unlock the Acrophobia skull and Alliance nameplate by logging into Halo: The Master Chief Collection on your choice of platform. After ODST's launch, the nameplate will no longer be available while the skull will be automatically added to the menus for everyone to enjoy.
Cut Season content
Two skins for the Halo: Combat Evolved Warthogs, both referencing Jurassic Park, were later removed from the game in the Season 5: Anvil update for unknown reasons. The skins were replaced with the Park Ranger and Field Medic skins, respectively.