For in-game issues, specifically finding or encountering bugs within the game, Amrich recommends posting a detailed account of the errors on the official Call of Duty message board.
Of course, Amrich recommends being polite when reporting issues. Other than being the civilized thing to do, it makes it easier to pinpoint the problems. "Insults in all caps might make you feel better, but it makes it tougher to get to the useful stuff," Amrich notes. It's a great point and we certainly hope the gaming world will take heed.
What are your first impressions of Call of Duty: Black Ops? Have you encountered any bugs?