User blog comment:Alex Martin Rider/Black Ops Glitch/@comment-1886172-20101115005102/@comment-1886172-20101115010805

Well then I have no advice. I buy all of my PC games on a disc. Well if you are a PC gamer cant you hack or mod or something to skip the mission. If you can't then I would go to Steams website or Treyarch's report the problem and wait while hopeing for a patch. Sorry.