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Call Of Duty: Modern Warfare 2 Update Brings Back Attachment Tuning; Full Patch Notes Released

Attachment tuning was previously causing the game to crash in some scenarios.


Infinity Ward has reintroduced a Call of Duty: Modern Warfare II feature that was previously causing the game to crash in some scenarios. The studio said on Twitter that it has brought back attachment tuning to the multiplayer shooter. The full patch notes for MW2's November 4 update have now arrived--you can see the complete notes below, as shared by Infinity Ward.

GameSpot tested weapon attachment tuning and found that it did not crash the game to use it. As usual, your mileage may vary. Infinity Ward disabled attachment tuning on October 29, saying at the time that crashes could occur when players had five attachments equipped.

This fix and others were apparently delivered in an overnight patch to Modern Warfare II. The patch is between 40GB - 50GB on Xbox but less than 1 GB on PlayStation, according to CharlieIntel.

The patch also fixes an issue that could cause camos to not unlock properly, and it also addresses frame rate drop issues and freezing issues. The MW2 patch also delivers "overall performance improvements" and fixes for stuttering/lag problems.

Smaller updates released for MW2 already have fixed things like map exploits and bugs.

MW2 November 4 Patch Notes:

General Updates

  • We’ve addressed a number of crashes affecting players across all platforms including the bug that caused certain players partied-up in game to crash when matchmaking. Last night’s update should provide additional stability in terms of crashing. We will continue to monitor live issue reports and provide resolutions as soon as we are able.
  • We have made general game improvements including:
    • Fix for various camos not unlocking during progression.
    • Fixed framerate drop issues.
    • Addressed known freezing issues.
    • Overall performance improvements.
    • Added fixes for stuttering and lag issues.


  • A recent NVIDIA hotfix addressed some critical issues. Please make sure you are running the game on drivers 526.61.
  • The PC benchmark map has been updated with a more accurate reading of the FPS display.
  • Be sure to follow our friends at Beenox for additional updates for MW2 on PC.


  • We are actively collecting weapon performance/usage data and will provide detailed updates on weapon-balancing with the launch of Season 01.
  • Last week we disabled the attachment tuning feature due to an issue affecting players with 4 or more tuned attachments equipped at once. We re-enabled attachment tuning in last night’s update so players should not encounter further issues equipping attachments on a weapon.


  • Enemy or live ping will remain disabled in multiplayer until a fix is implemented with the launch of Season 01. This is due to a bug where ping remained on some players after death. KBM players are currently still able to danger ping.
  • The player icon on the minimap will no longer disappear after a player is revived in certain modes.


  • We have added Breenbergh Hotel into Third Person Moshpit
  • There are no significant map changes, but we have patched various exploits and geometry bugs in the days since launch. We’ll continue to address small fixes through daily updates.


  • We continue to refine our UI and will have more details in the Season 01 launch notes.

In addition to changes that we have already made, we are also actively tracking live issues. Some of the known issues at present include:

  • We are aware of the following issues and fixes are in the works
    • Riot shield provides invincibility against chopper gunner and VTOL
    • DDOS Field upgrade availability bug
    • A bug affecting helicopter height, which allows them to leave the map in some instances

Infinity Ward has a public Trello board that shows issues affecting Modern Warfare II's multiplayer mode. Known issues include visual bugs on grass textures, player icons on the minimap disappearing, and crashes when players are partied up, among other issues.

Modern Warfare II was officially released on October 28 and it had the fastest start in Call of Duty history in terms of revenue. It earned $800 million worldwide in just three days, surpassing the previous record-holder, 2011's Modern Warfare 3, which made $755 million in five days.

For more on Modern Warfare II, check out GameSpot's Modern Warfare II campaign and Modern Warfare II multiplayer reviews. Another Call of Duty game, Warzone 2.0, will be released on November 16.

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