even though it's an expansion, specter of torment really brings its own flair and switches up the gameplay quite a bit from the original. the maps might have the same layout, but they've been totally reworked to fit this new dynamic movement style. i'll admit, i don't like this movement approach so much, but they've actually executed it quite well. once you get the hang of this campaign, things start falling into place. the specter of torment mechanics make it noticeably easier to handle combat situations and slip in and out of fights. but don't mistake my point, it's still a strong campaign that adds an intriguing new layer to the story.