PATCH NOTES - 1.4.309.0 - 24-June-2025

by Matt Newman in [ Announcements ] on, Jun 18, 2025 9:00 PM UTC 17  comments


Patch Date and Time - June 24, 2025 @ 10AM - 1PM PACIFIC
Version Number: TBA
Size: TBA
Please note that due to compression differences Steam patch size may be larger than the standalone client patch size.
Patch Files (Direct Download) - TBA

Greetings MechWarriors! 

This month’s update includes the release of the Gauntlet Booster Pack, 'mech adjustments, quirk adjustments, map adjustments, bug fixes, and more!

As always, a 2 week in-game Patch Science Sale (along with a streamer hunt for this month) will go live shortly after the patch and include all applicable items for testing.

'Mechs in-game and new 'mechs releasing are subject to future balance changes and tuning, so get out there and do the science so we can hear your feedback!


Gauntlet Booster Pack
The Gauntlet is an experimental OmniPod redux of the iconic Bushwacker 'Mech! 
In this booster pack, you will receive five mechs. The GTL-1O(S), GTL-1O, GTL-1OA, GTL-1OB, and GTL-1OC. You will also receive a title, badge, 2 decals, cockpit items, and 200 GSP. 
The Gauntlet will release for MC on October 21st, 2025 and for C-Bills on December 9th, 2025.




GTL-10 + GTL-10(S)




GTL-10A



GTL-10B




GTL-10C




The Gauntlet Mech Pack will be available in the MWO Store and on Steam.


Store Adjustments:

  • Grand Summoner released for C-Bills
  • 2024 Loyalty 'Mechs released for C-Bills
  • Grand Summoner Warhorn released for MC

Gameplay Changes:

  • Quickplay Domination circle timer returned to 60 seconds

Skill Changes:

  • Flamer Ventilation node renamed to Thermal Cycling. Thermal Cycling effect applies to both Flamers and Beams Lasers

Bug Fixes:

  • Black Lanner BKL-PRIME So8 5% speed quirk is now functional
  • SHC-PRIME now uses an energy hardpoint that won’t clip with the hand actuator

Map Changes:
  • Reduced fog on Ceres Metal Scrapyard and Luthien
  • Increased brightness on Ceres Metal Scrapyard
  • Frozen City (standard) is now night time
  • Increased Terra Therma Crucible temperature from 20C to 76C

Quirk Changes:

Piranha
  • PIR-1
    • Added 50% Machine Gun, Light Machine Gun, and Heavy Machine Gun ammo
Shadow Cat
  • SHC-NO
    • Added -20% Jumpjet Heat to CT
Black Lanner
  • All
    • Reduced Full Body Armor to 14 (from 18)
  • BKL-E
    • Reduced Missile Velocity in So8 to 100% (from 400%)
    • Added 300% SRM/SSRM Velocity in So8
    • Added -50% Missile Spread in So8
  • BKL-C
    • Reduced Laser Duration in CT  to -10% (from -15%)
Quickdraw
QKD-4H
Added -10% Heat

Marauder
  • MAD-5D
    • Last patch notes we announced this mech would receive Laser HSL +1. The mech was erroneously given Energy HSL +1. After examining the performance of the mech and the popularity increase the mech has experienced among the player base, we have decided to keep the mech with its Energy HSL.

Annihilator
  • ANH-2A
    • Added -10% Heat
  • ANH-1X
    • Removed -10% LBX10 Cooldown
    • Added -10% Ballistic Cooldown
    • Added -15% LBX Spread
  • ANH-1P
    • Added -10% Heat
    • Reduced CT Armor to 16 (from 20)
    • Reduced LT and RT Armor to 12 (from 26)
    • Reduced LA and RA Armor to 2 (from 12)
    • Reduced LL and RL Armor to 7 (from 16)


Patch Files (Direct Download) 

To make the patching process easier for players with limited download caps, we'll be providing direct download links for the patch file(s) that comprise this patch. This will allow you to download the patch file(s) elsewhere, for manual injection into the MWO patcher through a Patch Cache folder.

Aside from allowing you to download the patch file(s) elsewhere, on another connection, there are no additional benefits to performing the patch this way; the patching process itself will be the same.

This direct patch download process will only work for players running the standalone client. It does not apply to players running MWO through Steam.

Patch File(s):  - TBA
Download the above file(s)
For sake of ease, we recommend creating a dedicated folder for the patch file(s), such as 'MWO Patch Cache'
You do not need to unzip or unpack the patch file(s)
Launch the MWO Portal
Select the three horizontal lines in the top left of the Portal Window
Choose the 'Specify Patch File Cache' option
In the field that appears, paste or enter the location in which you saved the patch file(s) and hit OK
For example, C:\Users\<username>\Documents\MWO Patch Cache
Click the blue Patch button
The launcher will now check the Patch Cache folder you defined. If it locates the required patch files, it will unpack and use those files to apply the patch
Once the patch is complete, launch the game

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