I have the same issue as well. Running cod4 on win7 ultimate. It works fine for shorter periods but crashes just like carlos224’s when the match time is over 15 mins. The screens can’t be viewed and the log file is missing.
The latest update did not fix the issue either.
This is the crash log I believe: http://www59.zippyshare.com/v/1ssDnX2C/file.html