Marathon Update 1.05.2 Patch Notes as Duos Mode Experiment Moves to Outpost

Three armored futuristic soldiers aim weapons in a dimly lit, narrow orange hallway. They exude tension and readiness, poised for action.
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By Alexandria LopezStaff Writer

Three armored futuristic soldiers aim weapons in a dimly lit, narrow orange hallway. They exude tension and readiness, poised for action.
  • Primary Subject: Marathon Update 1.05.2 / Duos Testing
  • Key Update: The Duos experiment moves to the Outpost map with a focus on puzzle mechanics, alongside a patch update that fixes slide-cancel momentum and map geometry.
  • Status: Confirmed
  • Last Verified: April 1, 2026
  • Quick Answer: Marathon Update 1.05.2 fixes slide-cancel exploits, reopens Pinwheel’s Destroyed Wing, and resolves various UI/localization bugs. A separate update has also moved the Duos mode to Outpost (pre-made only).

Marathon has received two important updates, which include changes to its Duos mode.

Bungie's extraction shooter continues to impress, with regular patches addressing player feedback and concerns. Now, the devs have announced changes to the Duos experiment as well as other improvements to the overall game.

Here's everything you need to know!

Marathon Changes Duos Mode Map

For those who love to play Duos, Marathon is making some changes.

A first-person shooter game scene features a player holding a neon green gun. Onscreen objectives and HUD display. A glowing red panel is mounted on the ceiling. The tone is intense and action-oriented.
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Credit: Bungie

READ MORE: Marathon Review: A Bold, Brutal, and Neon-Soaked Extraction Shooter

Starting April 1 (10 AM PT), Dire Marsh - Duos will be disabled. The Duos experiment will now move to Outpost. This change will last for a week, until April 8. After, the map will likely change again.

Only pre-made duos will be able to queue. Similar to previous weeks, there will be no matchmaking for random duo partners.

READ MORE: Marathon Devs Change Schedule for Ranked Mode and Cryo Archive After Player Backlash

For this week's experiment, the people over at Bungie will be monitoring the PvP and PvE. They will also be focusing on puzzle mechanics in duos mode and technical issues.

Marathon Unveils 1.05.2 Update

Besides the changes to Duos mode, Bungie also released a 1.05.2 patch update for the game. The updates focus on bugs and issues reported by players, as well as fixes to certain maps.

First-person view in a vibrant sci-fi setting, showing a character in a purple suit aiming at robotic enemies with laser beams. The scene is tense and dynamic.
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Credit: Bungie

Here are the Marathon 1.05.2 patch notes in full:

Combat

Runner Shells

  • Fixed an issue allowing slide cancel animations to keep momentum when either pulling out equipment or using the Thief's Grapple Device ability.

Contracts

  • Fixed an issue where players could end up locked in a room during the Introducing: NuCaloric
  • Fixed an issue where disabled contracts could not be rerolled for free.
  • Fixed an issue making the objective points visible for all Runners on the map when one Runner is on RUN/HIDE [Part 1/6].

Zones

Dire Marsh

  • Fixed an issue where the Anomalous waypoint activity was appearing below the map even when the event was inactive.

Outpost

  • Adjusted the combat area for the Tox Warden:
  • Tuned the layout to reduce the number of hiding spots.
  • Tox plants now react correctly to player presence.
  • Fixed an issue where the final exfil would spawn in the same spot every time.

Pinwheel

  • The Destroyed Wing entrance has been reopened.
  • Improved overall loot rewards.
  • This includes the quality of loose loot and small containers.
  • Updated encounters to match reward quality.
  • Changed the security credentials needed to access the locked room in the Hub.
  • Added bulletproof glass to the Hub room.

Cryo Archive

  • Fixed geometry in Vault 6 that allowed Runners to fall to their deaths.

Armory

  • Fixed a crash that could occur when opening the Armory.
  • Fixed a bug that was causing low framerate on Armory tabs with many items.

Developer Note: Traxus operates beyond scale.

Codex

  • Fixed an issue in the Ranked Challenges section, causing Diamond to show before Platinum.
  • Fixed an issue with the Requiem for a Cyborg challenge so that it progresses for all players in a crew after a successful Compiler kill.

UI & UX

Keybinds

  • The ESC key will now exit the keybinding menu instead of exiting settings.
  • Added an option to clear keybinds in the settings menu.

NOTE: Non-English languages will show this setting as blank. This will be fixed in a future patch.

Text Chat

  • Fixed an issue causing loss of control for a few seconds after using an IME keyboard in text chat while in a run.

Localization

  • Fixed an issue causing certain Codex entries to appear blank when viewing in Chinese.

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