Wrapped the expansion for Dawn of War II last night. Reasonable, though in the end I had to exploit the AI of the final boss to beat him.
I like the idea of the two fold campaign, but I avoided any hard choices. At no point was I in any real danger of becoming chaotic. I even deliberately chose to equip some warp tainted terminator armor on the basis of the fact that you can't send normal marines into a space hulk. They get eaten. But I balanced that off by using up one of my one time use artifacts to set the taint back to zero.
I am curious to see if the campaign unfolds different if you go for chaos stuff. The stats on the tainted artifacts are always very tempting.
Overall, it's more of the same for the single player, so I liked it.