I really enjoyed this. Although it is a tad short campaign wise, i mean i finished it twice in one weekend. This is a shame, but i cant hold it against the game, what with it being a expansion.
What can i say, i always loved Chaos, and the new curruption idea was a very nice touch. Stay pure... or give in to the dark gods, your choice. Either way, you'll find items/weapons that will provided added bonuses to which ever direction you decide to take.
But, while the single player game was fun... What i found myself ingrossed in was the Last Stand feature. With the 2 extra commander units to choose from, this part of the game kept me hooked for hours, and i DO mean hours.
This deff gets a big thumbs up from me.