Today we are releasing a small hotfix to address a few issues that became apparent since our previous update. We have addressed an audio cache related issue that led to frequent ‘stuttering’ for some players. If you experienced the stuttering issues, let us know whether this fixed them. We have also made some tweaks to AI behaviors in Coop modes that should improve the experience overall. Please continue to post your feedback as we continue to improve upon the bots. Full changelist below:

Optimization
-Fixed audio cache issue that would lead to frequent “stuttering” on machines that use hard disks instead of solid state drives when audio files were being streamed into memory.

Bug Fixes
-Fixed gaining score in Ambush for TK’ing the VIP.
-Fixed not gaining two supply in Survival when securing a safehouse.
-Fixed missing AP and HP ammo icons for M1911 and M45.
-Fixed wood grips for AKM, AKS-74U and AK-47 costing only 1 supply instead of 2 like all the other grips.
-Fixed missing map vote images for new maps added in the 12/12 update.
-Fixed navmesh issue in Buhriz_coop.
-Ministry: Fixed some car windows inside the garage blocking bullets when destroyed.
-Revolt: Moved cache A Flashpoint out of restricted zone.
-Revolt: Fixed several soundscape issues.
-Revolt: Fixed a small graphical glitch in the sky near INS spawn area.
-Sinjar: Fixed attacking team not set for Strike.

Coop Improvements
-Improved bot targeting so they no longer prioritize aiming for a player’s head.
-Adjusted bot aim penalty and aggressiveness.
-Bots slide less and no longer shoot or turn while doing so.
-Suppressing bots will make it more difficult for them to shoot back at you.
-Bots no longer fire while mid-air if they’re falling.
-Bots utilize grenades more efficiently.
-Bot voice-over frequency reduced.
-Improved bot flashlight behavior in Survival.
-If you are part of securing a safehouse in Survival, you will get 2 supply instead of 1.
-M1911 costs the same as other pistols in Survival.

Features
-Added Freetype rendering for fonts which results in better anti-aliasing. Currently only on Windows.

Content
-Updated M45 texture.
-New M1911 animations.
-Removed green night sights on M9.
-Improved night vision goggle placement on the Insurgent VIP.

If you are crashing, please post your dump here and let us know whether you are an Nvidia or AMD video card user. We suspect there may be a crash linked to the most recent AMD driver update, so getting more feedback from users would help us greatly.
fonte: http://store.steampowered.com/news/?appids=222880