- last post: 01.01.0001 12:00 AM PDT
I would have to say, Two Betrayals. The tunnel part can be a pain in the ass driving, unless you can take out the rocket flood.
But the hardest part in the game would have to be the Belly of the Beast, imo. Even on heroic, it can be a pain keeping the marines alive. And there's also quite a few sword elites in that part. =/