[Scooby]

Same type of thing happened to me. The game installed fine but when I was in the Briefing Room and clicked on Basic Training, or Arzew, the game would lock up and I would have to reset my computer.

Try connecting to the internet and then try playing the game again. If it loads up fine then you know that the game was trying to dial up the internet whenever you click on Basic Training, or Arzew. For a permanent fix, click Start, Settings, Control Panel, Internet Tools, Connection Settings, and then click on Never Dial A Connection.

Worked for me, hope it works for you.