after 3 days of playing the game crashes and i get messages like: AllocRenderModel called from a different thread for 'particles/weapons/muzzle_flashes/smg_heavy' i didnt do an update or anything,it just happens now-.- it′s always about the different threads,does anybody have the same problem?

This has been happening since launch for me. Reinstalled 5 times. Purchased and downloaded from Steam. Game is completely unplayable now, I get ~1-2 minutes into anything (challenges, solo campaign, coop campaign, multiplayer, etc.) and it pulls some random error. Its been muzzle flashes, dirt particles, the last shred of hope for this game being enjoyable - you name it. Always starts the same though with the AllocRenderModel calling for a different thread.

Any help would be grand. Would like so much for this game to not be a complete waste.