Ive been reading a lot of unholy DK stuff for cata tonight to try and make sure im 100%, raided WOTLK 25m Kingslayer etc, and this rotation doesnt make sense on one thing...
Diseases >> dark transformation >> festering strike >> scourge strike >> death coil >> death and decay
sure you start out with outbreak, but why would dark transformation be next, you cant even cast it at that point, or is it just saying use it when its up pretty much, which is pretty obvious