Warhammer 40,000: Space Marine 2 update 8.0 patch notes – Siege Mode and balancing

Update 8.0 for Warhammer 40,000: Space Marine 2 has arrived on PC, PS5, and Xbox Series X|S on June 26, 2025, finally adding the long-awaited PvE horde mode to the game alongside balance changes and yet another wave of cosmetic content.

Siege Mode, as the new gameplay mode is called, allows up to three players to tackle endless enemy waves on Kadaku. Both Tyranids and Chaos forces will assail the imperial fortress with its three sectors — Defensive Positions, Arsenal, and Control Room. Each sector will confront players with five waves before the team can move on to the next one. Every fifth wave’ll bring boss enemies to the front. 

Naturally, waves grow stronger and stronger over time, which players can counter by investing the resources they find in equipment and allies in-between waves. You can summon squads of Guardsmen or even a Dreadnought to help you out, but some of your currency will have to go into basic material like ammunition and stimpacks to ensure that you can fight on.

Find the full Warhammer 40,000: Space Marine 2 update 8.0 patch notes below.

Warhammer 40,000: Space Marine 2 update 8.0 patch notes

• New PvE Mode – Siege

New Season Pass Content:

• Added White Scars Chapter Champion. 
• Added White Scars Chapter Weapon Skin Pack. 
• Added White Scars Chapter Customisation Pack. 
• Added Blood Angels Customisation Pack.

Extended Weapon arsenal in PvE:

• Added Thunder Hammer for Bulwark. Picking this weapon won’t allow you to use the Storm Shield.

New Finishers for Bulwark:

• Adding new finishers for Bulwark with shield — 1 for Hormagaunt and 1 for Tzaangor.

Terminus Update for Absolute Difficulty:

• A second Terminus can now appear during a mission.
• Carnifex, Neurothrope and Helbrute HP increased by 33% on Absolute difficulty.
• Level specific Terminus enemies (with the exception of the Hierophant Bio-Titan) HP increased by 66% on Absolute difficulty.
• Additional enemy packs will appear upon Terminus enemies spawn and again when their HP is reduced to 50%
• These additional packs are now slightly more challenging featuring more Extremis enemies
• Mission with final bosses can now also spawn Terminus enemies (previously, missions like “Decapitation” didn't allow any Terminus spawns)".

Bulwark Prestige Perks Update:

• “Rally Point”: The perk has been reworked. The new perk is “Emboldened Stand”.
• Old: “Chapter Banner additionally removes negative Status Effects while active.”
• New: “When the Chapter Banner is active, all Squad Members do not lose control upon taking Heavy Hits and cannot be knocked back within its zone.”

Assault Prestige Perks Update:

• "Boosted Recharge": The perk has been reworked. The new perk is “Unyielding Oath”.
• Old: “Collecting an Armour Boost restores Ability Charge by 100%.”
• New: "When charging a Ground Pound, you become Invulnerable for 3 seconds."

Sniper Prestige Perks Update:

• "Boosted Recharge": The perk has been reworked. The new perk is “Materiel Upgrade”.
• Old: “Collecting an Armour Boost restores Ability Charge by 100%.”
• New: "Equipment Damage radius increases by 15%."

Heavy Prestige Perks Update:

• “Restorative Capacity”: The perk has been reworked. The new perk is “Honed Precision”.
• Old: ” Activating Iron Halo removes negative Status Effects.”
• New: "Equipped Weapon's Maximum Spread decreases by 25% when firing without aiming."

Tactical Prestige Perks Update:

• "Skilled Supplier":  Fixed a bug preventing the player from getting the maximum ammo.

Bulwark Perks Update: Perks have been updated to reflect the addition of the Thunder Hammer to the Bulwark’s arsenal. 

• "Forward Momentum": The perk has been updated. 
• Old: “After a Shield Bash, Melee Damage increases by 30% for 10 seconds.”
• New: "After a Shield Bash or Thunder Hammer Pommel Smash, Melee Damage increases by 30% for 10 seconds".

• "Concussive Force": The perk has been updated.
• Old: “Shield Bash deals 200% more Damage.”
• New: "Shield Bash deals 200% more Damage. Thunder Hammer Pommel Smash deals 100% more Damage and deals area-of-effect Damage within a 7-metre radius. Cooldown is 5 seconds."

• "Merciless Resolve": The perk has been updated.
• Old: “After a Shield Bash, Melee Damage increases by 15%, you do not lose control upon taking Heavy Hits and you cannot be knocked back for 10 seconds”
• New: "After a Shield Bash or Thunder Hammer Pommel Smash, Melee Damage increases by 15%, you do not lose control upon taking Heavy Hits, and you cannot be knocked back for 10 seconds".

• "Focused Restoration": The perk has been buffed.
• “Every 40 seconds, all Squad Members automatically restore 1 Armour Segment “ ->  Cooldown decreased from 40 to 30 seconds.

Tactical Perks Update:

• "Final Shot": The perk has been reworked. The new perk is “Emperor’s Judgement”.
• Old: “After a Finisher, the equipped Ranged Weapon reloads automatically.”
• New:"After a Finisher, the equipped Ranged Weapon reloads automatically, and your Primary Weapon deals 20% more Damage for 10 seconds".

• "Communion of Fire": The perk has been reworked. The new perk is “Secure Stockpile”.
• Old: “Recoil is reduced by 25% and Ranged damage against Extremis-level enemies is increased by 10% for all Squad Members.”
• New: “Equipment Charge is restored by 1 for all Squad Members. Cooldown is 60 seconds.”

• "Steady Aim": The perk has been buffed.
• “Weapon Spread and Recoil is reduced by 20% and Ranged Damage against Terminus-level enemies is increased by 10%” -> Ranged Damage bonus increased from 10% to 15%.

Assault Perks Update:

• "Winged Fury": The perk has been buffed
• “Damage from Melee Attacks executed while sprinting or dashing increases by 40%.” -> Damage increased from 40% to 100%.

• "Hammer of Wrath": The perk has been buffed.
• “After a Ground Pound, you take 15% less Ranged Damage, do not lose control upon taking Heavy Hits and you cannot be knocked back for 10 seconds” -> Damage reduction increased from 15% to 20%. Knock back immunity duration increased from 10 to 15 seconds.

Vanguard Perks Update:

• "Moving Target": The perk has been buffed.
• “Each Melee Attack you land reduces the Ranged Damage you take by 2% (up to 20%). If you do not land a Melee Attack for 5 seconds, the effect ends.” ->  Consecutive hit multiplier increased from 2% to 5%. Max bonus increased from 20% to 30%.

• "Retribution": The perk has been buffed.
• “After you are grabbed or knocked back, you deal 25% more Melee Damage for 15 seconds.” -> Bonus damage increased from 25% to 30%. Duration increased from 15 to 20 seconds.

Sniper Perks Update:

• "Precision Targeting": The perk has been buffed.
• “Weapon Spread is reduced by 25% and Ranged Damage against Extremis-level enemies is increased by 10% for all Squad Members.” -> Ranged Damage against Extremis-level enemies increased from 10 to 15%.

• "Dexterous Hands": Instigator Bolt Carbine is now also affected.
• “Bolt Carbines reload 20% faster, and their Weapon Spread and Recoil are reduced by 15%.”

Inferno Pistol Perk Update:

• "Know no fear": The perk has been reworked. 
• Old: “When your Health is below 10%, Reload Speed increases by 30%”
• New: “If your Armour is fully depleted, Reload Speed increases by 20%.”

Neo-Volkite Pistol Perk Update:

• "Combustive momentum": The perk has been buffed.
• “After a Gun Strike, heating speed increases by 30% for 6 seconds.” -> Duration increased from 2 to 6 seconds.

Combat QoL:

• If a Sniper type enemy aims at you, using Assault’s Jump Pack ability will allow you to dodge the shot. The sniper will shoot instantly, but the shot will miss.
• Fixed an issue where Neurothropes' Warp Storm afterblasts could stun-lock the player with heavy hits. Now, afterblasts will damage the player but not control them. Additionally, Neurothropes' shots now have a slightly longer delay between them.
• Fixed a lot of minor issues improving overall combat responsiveness 

Bolt Pistol:

• Hip-Fire spread decreased by 50%. 
• Velocity of spread increasing in minizoom state is decreased by 15%.

Inferno Pistol:

• Gun Strike Damage increased by 20%.

PvP:

• Large amount of small fixes in level geometry collision.
• Lots of minor fixes for private lobbies gameplay modifiers.

Spore Mines:

• Explosion damage is reduced by 55%.

Neurothrope:

• Health reduced by 15%.
• Temporary invulnerability is replaced with high damage resistance when it flies up from the ground.

AI:

• Lots of minor animation fixes for various enemies.

Customization:

• Added Red, White and Blue weapon skins as Siege mode rewards
• Added Prestige reward shoulder pad on left shoulder as well.
• Added left pauldron decal "Ultramarine Sergeant".
• Lots of other minor fixes for customizations of armour parts and emblems.

Levels:

• Large amounts of small fixes in level geometry collision and Terminus enemies getting stuck in some areas.

General Fixes:

• Fixed an issue where spore mines could spawn on top of the player.
• Fixed several cases where contested health may decrease while performing a finisher.
• Fixed: Combining Sniper's prestige perk Emperor's Grace with Lingering Concealment perk drains the ability charge while linger is active
• Fixed: Weapon perk "Reloaded Restauration" was not activated by the Sniper's perk "Efficient Readiness".
• Fixed an issue where the Bulwark perk’s “Intimidating Aura” was not triggering with a Perfect Block.
• Fixed an issue where the Tactical’s perk’s “Battle Focus” was not triggering with a Perfect Block.
• Fixed a bug with the “Final Shot” perk not increasing damage in some cases.
• Fixed a bug affecting Heavy's “Bonds of brotherhood” perk not granting full health when the player is revived by a bot.
• Fixed an issue provoking a game freeze on a black screen at the end of a PvE level on Xbox Series S.
• Fixed an issue where some pick ups were inaccessible as a consequence of the interaction button failing to appear. 
• Fixed rare camera bugs after finisher.
• Lots of minor animation fixes for the player.
• Minor UI, sound and VFX fixes and improvements

Tech:

• Crash fixes and general stability improvements.
• Matchmaking and network stability fixes.
• Minor memory optimization. 
• Improvements to game modding capabilities.

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