MECHWARRIOR ONLINE LEGENDS MAY PATCH NOTES

Patch Date and Time - May 20, 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 Shadow Cat Noble, the Clan Galaxies Pack, weapon adjustments, 'mech adjustments, quirk adjustments, bug fixes, and more!

As always, a 2 week in-game Patch Science Sale 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!

-The Mechwarrior Online Team

Shadow Cat Noble Legend Mech

BATTLEPASS PROGRESS LINK: MWO: The Legendary Mechs

PLEASE NOTE: REDEEM BATTLEPASS REWARDS ON THE WEBSITE STORE PAGE (UPDATED EVERY HOUR)

The Shadow Cat Noble is a very unique legend. In the right torso it carries a locked Inner Sphere AC20(to simplify building it is set to use Clan AC20 ammo). It has 2 less jumpjets than other variants, a lower engine, and fixed structure and armor slots migrated to the arms. Please note that none of these changes, including the locked AC20, can be transferred to other SHC changes via omnipods. They all, including the lower engine and AC20, are locked to the variant.

Clan Galaxies Pack

We are excited to release new Clan Mech skins for Mechwarrior Online in the Clan Galaxies pack! In here, you will receive the Jade Falcon Vau Galaxy, Jade Falcon Phi Galaxy, Wolf Delta Galaxy, Ice Hellion Zeta Galaxy, Ghost Bear Silveroot Keshik, and Ghost Bear Delta Galaxy skins. Please note that these skins are not available on the following clan mechs: Clan Flea, Commando IIC, Urbanmech IIC, Clan Wolfhound, Clan Archer, Clan Annihilator, Clan Stalker, and Clan Nightstar. You will also receive 6 mechs, each with one of the new skins equipped by default and a 30% cbill boost.

Store Adjustments:

• Grand Summoner released for MC
• Bane released for MC
• 2024 Loyalty Mechs released for MC
• Spectre and Apache warhorns released for MC 

Gameplay Changes:

• Quickplay Domination circle timer raised to 120 seconds (this is a single patch item, it will be returned to 60 seconds next patch)

Equipment Changes:

• MASC MK1 (Inner Sphere and Clan) Acceleration bonus reduced from 150% to 100% (Fire Moth MASC not impacted)
• MASC MK1 (Inner Sphere and Clan) Deceleration bonus reduced from 140% to 100% (Fire Moth MASC not impacted)
• MASC MK2 (Inner Sphere and Clan) Acceleration bonus reduced from 150% to 120%
• MASC MK2 (Inner Sphere and Clan) Deceleration bonus reduced from 140% to 110%
• MASC MK3 (Inner Sphere and Clan) Acceleration bonus reduced from 150% to 130%
• MASC MK3 (Inner Sphere and Clan) Deceleration bonus reduced from 140% to 120%
• MASC MK4 (Inner Sphere and Clan) Acceleration bonus reduced from 150% to 140%
• MASC MK4 (Inner Sphere and Clan) Deceleration bonus reduced from 140% to 130% 

Bug Fixes:

• Fixed Mad Dog jumpjet shake stats to be in line with other mechs

Quirk Changes:

Adder

• ADR-PRIME
• Increased ERPPC Velocity in So8 to 20% (from 10%) 

Firestarter

• FS9-S
• Added 10% Range
• Added Energy HSL +1
• FS9-A
  
• Added 10% Range
• FS9-H
• Increased Ballistic Cooldown to -25% (from -15%)
• Increased Ballistic Ammo to 200% (from 100%)
• Added 15% Ballistic Range
• Added -100% Crit Chance Receiving
• FS9-K
• Increased Laser Duration to -20% (from -10%)
• Added -20% Coolshot Cooldown
• Added Consumable Capacity +1
• Added Coolshot Capacity +1
• FS9-E
  
• Removed 15% Medium Laser Range
• Removed -10% Laser Heat
• Removed -10% Snub PPC Heat
• Added 15% Range
• Added -10% Heat
• FS9-FS
  
• Removed -10% Energy Cooldown
• Added -10% Cooldown
• Added 25% Machine Gun Rate of Fire
• FS9-C
  
• Removed -10% Energy Heat
• Increased Velocity to 20% (from 10%)
• Added -10% Heat

• UZL-3S
• Removed -5% pulse laser heat
• Removed -5% Ballistic cooldown
• Removed -60% Missile spread
• Increased heat to -10% (from -5%)
• Increased cooldown -15% (from -10%)
• Added -60% Weapon spread
• UZL-2S
• Removed 20% PPC velocity
• Added 25% Weapon velocity
• UZL-5P
• Removed -40% RAC jam chance
• Removed -15% Ballistic heat
• Added -15% Heat
• Added 20% Velocity
• UZL-3P
• Removed -20% UAC jam chance
• Removed -10% Ballistic cooldown
• Removed -15% Missile cooldown
• Added -40% Universal jam chance (RAC/UAC)
• Added -10% cooldown
• Added 20% Velocity 

Black Lanner

• All Variants
• Removed ALL quirks
• Added Full Body Armor +18 to CT
• BKL-PRIME
• Added -10% Cooldown to CT
• Added -7.5% Laser Duration to LA and RA
• Added 50% Missile Ammo to RT and LT
• Added -7.5% Missile Spread to RT and LT
• Added 5% Speed to So8
• Added -10% Heat to So8
• BKL-A
• Added -10% Heat to CT
• Added -5% Heat to LA and RA
• Added 7.5% Range to RT
• Added -15% ERPPC Heat in So8
• Added 25% Velocity to So8
• BKL-C
• Added +100 Sensor Range in Head
• Added -15% Laser Duration to CT
• Added -2.5% Heat to LT
• Added -7.5% Laser Duration to RT
• Added -7.5% Missile Spread to RA
• Added -12.5% Heat to So8
• BKL-D
• Added +100 Sensor Range in Head
• Added 100% LMG, HMG, MG, and AP Gauss Ammo to CT
• Added 15% Velocity to CT
• Added 50% Missile Ammo to RT and LT
• Added -7.5% Missile Spread to RT
• Added 1.5s Target Decay to So8
• Added +100 Sensor Range to So8
• BKL-E
• Added +100 Sensor Range in Head
• Added 10% Range to CT
• Added 5% Range to LT
• Added -5% Heat to RT
• Added -7.5% Missile Spread to LA
• Added -10% Cooldown to So8
• Added +400% Missile Velocity to So8
• BKL-BL
• Added -10% Cooldown to CT
• Added 50% Missile Ammo to LT and RT
• Added -7.5% Missile Spread to RT
• Added 10% Ballistic Range to LA and RA
• Added -7.5% Spread to So8
• Added 100% LMG, HMG, MG, and AP Gauss Ammo to So8

• GRF-2N
• Removed 20% PPC Velocity
• Increased Heat to -10% (from -5%)
• Added 20% Weapon Velocity
• Added 30% Enhanced ECM
• GRF-3M
• Added -10% Missile Spread
• GRF-5M
• Removed -5% Ballistic Cooldown
• Increased Cooldown to -20% (from -10%)
• Increased Ballistic Range to 25% (from 10%)
• GRF-AR
• Removed PPC HSL +1
• Added Energy HSL +1

• MDD-SI(LGD)
• Added -25% Large Laser Family Heat to So8

Marauder

• MAD-5D
• Removed -5% Heat
• Removed -10% Missile Spread
• Increased Missile Cooldown to -20% (from -10%)
• Added Laser HSL +1
• Added 35% Jump Jet Initial Thrust
• MAD-5M
• Removed -5% Energy Heat
• Increased Ballistic Cooldown to -15% (from -10%)
• Increased LBx Spread from -15% (from -10%)
• Added -10% Heat
• Added 35% Jump Jet Initial Thrust
• MAD-9M
• Removed -5% Heat
• Removed -5% Laser Heat
• Removed -15% Missile Cooldown
• Added -10% Heat
• Added -15% Cooldown
• MAD-B
• Increased Crit Chance Receiving to -68% (from -50%)
• Added -10% STD AC Cooldown 

Victor

• VTR-9S
• Removed -10% Ballistic Cooldown
• Removed -10% Missile Cooldown
• Removed -5% AC20 Cooldown
• Removed 10% Range
• Removed 10% Weapon Velocity
• Added -10% Cooldown
• Added 40% Ballistic Velocity
• Added 40% AC20 Range
• VTR-9B
• Removed -10% Cooldown
• Removed -5% AC20 Cooldown
• Removed -10% Laser Duration
• Increased Jam Chance to -100% (from -40%)
• VTR-9K
• Removed -10% Cooldown
• Removed 10% Range
• Removed 15% Weapon Velocity
• Increased Pulse Laser Range to 50% (from 10%)
• Increased Gauss Cooldown to -35% (from -25%)
• Added -20% Laser Duration
• VTR-9AI
• Removed -5% Energy Cooldown
• Removed -10% Laser Duration
• Added 25% Ballistic Range
• VTR-DS
• Removed -5% Gauss Cooldown
• Removed -5% Energy Heat
• Increased Heat to -15% (from -10%)
• Added 10% Range

Stalker

• STK-4N
• Removed -5% Laser Heat

Longbow

• LGB-7V
• Reduced Heat to -5% (from -10%)
• Added -5% Missile heat
• LGB-OC
• Reduced CT Structure to 10 (from 15)
• Reduced LT and RT Structure to 15 (from 20)
• Reduced LA and RA Structure to 10 (from 15)
• Reduced LL and RL Structure to 10 (from 15)

Annihilator

• ANH-1A
• Removed AC10 HSL +1
• Increased AC10 Cooldown to -15% (from -10%)
• Added Ballistic HSL +1
• Added 10% Ballistic Range
• ANH-1E
• Removed-10% PPC Cooldown
• Reduced Heat to -15% (from -20%)
• Reduced PPC Velocity to 15% (from 30%)
• Increased CT Armor to 20 (from 16)
• Increased LT and RT Armor to 26 (from 12)
• Increased LA and RA Armor to 12 (from 2)
• Increased LL and RL Armor to 16 (from 7)
• ANH-1P
• Removed -10% Heat
• Increased CT Armor to 20 (from 16)
• Increased LT and RT Armor to 26 (from 12)
• Increased LA and RA Armor to 12 (from 2)
• Increased LL and RL Armor to 16 (from 7)
• ANH-1X
• Reduced Heat to -5% (from -10%)
• Increased CT Armor to 20 (from 16)
• Increased LT and RT Armor to 26 (from 12)
• Increased LA and RA Armor to 12 (from 2)
• Increased LL and RL Armor to 16 (from 7)
• ANH-2A
• Removed -10% Heat
• Increased CT Armor to 20 (from 16)
• Increased LT and RT Armor to 26 (from 12)
• Increased LA and RA Armor to 12 (from 2)
• Increased LL and RL Armor to 16 (from 7)
• ANH-MB
• Removed 30% PPC Velocity
• Increased CT Armor to 20 (from 16)
• Increased LT and RT Armor to 26 (from 20)
• Increased LA and RA Armor to 12 (from 2)
• Increased LL and RL Armor to 16 (from 7)

Bane

• BANE-1
• Reduced Heat to -10% (from -12.5%)

Marauder II

• MAD-4L
• Removed -5% Energy Heat
• Removed -10% Gauss Cooldown

King Crab

KGC-KJ

• Removed 30% PPC Velocity
• Removed -10% Ballistic Cooldown
• Removed -5% Energy Cooldown
• Removed -10% Missile Cooldown
• Removed 15% Missile Range
• Removed -10% PPC Heat
• Increased Heat to -15% (from -10%)
• Added -10% Cooldown