1.0.4|Apr 20, 2026
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Patch 1.0.4.5

3/5 Moderate

Major weapon mod overhaul for barrels and handguards alongside base stat buffs for AK, SCAR, and AUG series rifles.

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Key Changes

  • 1Stage 2 weapon mod overhaul: Handguards no longer reduce recoil, and barrels have reworked recoil/ergonomics trade-offs
  • 2Base recoil and ergonomics improved for AK series, SCAR, AUG, MCX, and all bolt-action/marksman rifles
  • 3New player culling system implemented on Lighthouse, Shoreline, Woods, and Ground Zero for better performance
  • 4Task progression protection added for local PvE Zone raids to prevent loss during game crashes
  • 5Streets of Tarkov environment and geometry optimization to improve location performance
  • 6Increased FPS limit in menus with a new adjustable setting
  • 7Reworked post-raid architecture to significantly reduce time spent returning to the main menu
  • 8K/D display updated to count player kills only, excluding AI
  • 9Ref's assortment updated with new gear and weapons from EFT: Arena Season 2
  • 10Fixed damage registration issues occurring after weapon malfunctions

All Changes

🚀Performance(11)

  • fixUI: Optimized off-raid screens for better performance
  • changeMenus: Increased the FPS limit in menus
  • newSettings: Added a game setting to adjust the menu FPS limit
  • fixAnimation System: Updated animation system to improve PC resource usage
  • fixAudio Engine: Updated audio engine to improve PC resource usage
  • fixPost-raid Systems: Reworked post-raid system architecture to reduce time required to return to menu
  • fixLighthouse: Implemented updated player culling system on Lighthouse
  • fixShoreline: Implemented updated player culling system on Shoreline
  • fixWoods: Implemented updated player culling system on Woods
  • fixGround Zero: Implemented updated player culling system on Ground Zero
  • fixStreets of Tarkov: Optimized environment objects and geometry to improve performance on Streets of Tarkov

🎮Gameplay(4)

  • newPvE Zone: Implemented task progression protection in local PvE raids that reverts progress to start-of-raid state upon unexpected shutdown
  • changeLeft-shoulder Stance: Updated left-shoulder firing logic; weapons no longer switch instantly to right shoulder upon colliding with obstacles
  • changeK/D Stats: Updated K/D display in character stats to count player kills only
  • newRef: Added Season 2 EFT: Arena character customization options, gear, and weapons to Ref's assortment

🔫Weapons(19)

  • changeBarrels: Standardized barrel parameters for better clarity
  • buffBarrels: Longer barrels now provide greater recoil reduction
  • nerfBarrels: Longer barrels now impose higher ergonomics penalties
  • nerfHandguards: Handguards no longer provide recoil reduction
  • buffHandguards: Handguards now offset ergonomics penalties imposed by barrels
  • nerfMuzzle devices: Suppressors and compensator combos now reduce ergonomics more significantly
  • nerfMuzzle devices: Suppressors and compensator combos now provide less recoil reduction
  • changeButtstocks: Adjusted buttstocks to address inaccuracies from previous balance iterations
  • buffAK Series: Improved base recoil and ergonomics for all AK, AKM, and AK-100 series weapons
  • buffSteyr AUG: Improved base recoil and ergonomics for Steyr AUG A1 and A3
  • buffHK G36: Improved base recoil and ergonomics for HK G36
  • buffHK 416A5: Improved base recoil and ergonomics for HK 416A5
  • buffFN SCAR: Improved base recoil and ergonomics for FN SCAR-L and SCAR-H
  • buffSIG MCX: Improved base recoil and ergonomics for SIG MCX-SPEAR and MCX .300
  • buffCMMG Mk47 Mutant: Improved base recoil and ergonomics for CMMG Mk47 Mutant
  • buffRD-704: Improved base recoil and ergonomics for Rifle Dynamics RD-704
  • buffAklys Defense Velociraptor: Improved base recoil and ergonomics for Aklys Defense Velociraptor
  • buffMachine Guns: Improved base recoil and ergonomics for all machine guns
  • buffRifles: Improved base recoil and ergonomics for all bolt-action and marksman rifles in 7.62x51, 7.62x54R, .338, and .50 BMG

🛠️Bug Fixes(15)

  • fixPlayers: Fixed visual movement of dead players and bots
  • fixCombat: Fixed damage registration failure after weapon malfunction when using stationary weapons
  • fixTraders: Fixed Error 228 during trader dialogues that blocked task progression
  • fixMaps: Fixed various issues with culling, shadows, textures, and geometry
  • fixArmor: Fixed inability to pick up armor dropped while in the modification window
  • fixAI: Fixed incorrect PMC bot behavior toward high-reputation Scavs in PvE
  • fixThe Labyrinth: Fixed progression block in The Labyrinth burner tool room
  • fixSmoke Grenades: Fixed smoke grenade display issues in player hands
  • fixHideout: Fixed Combat Skill Leveling Boost display in Hall of Fame when replacing dogtags
  • fixSettings: Fixed PostFX settings display when preview is enabled
  • fixInterchange: Fixed players getting stuck in the Interchange secret saferoom
  • fixAI: Fixed floating bots and incorrect display when using stationary weapons
  • fixLoot: Fixed multiple issues with loot and gear behavior when dropped in raid
  • fixUI: Fixed display of movement noise level and stance height during raids
  • fixAnimations: Fixed third-person animation for inventory inspection

Summary

Patch 1.0.4.5 introduces the second stage of the weapon mod adjustment project, fundamentally changing how barrels, handguards, and muzzle devices affect weapon handling to encourage "loud" builds. The update also brings significant performance optimizations, including a new player culling system for four maps and geometry improvements for Streets of Tarkov. Additionally, PvE players receive task progression protection against unexpected game crashes.