Chaos Rising part 2

I just finished playing through the campaign for Chaos Rising. It is definitely an interesting plot. The cinematics continue to impress. If you bought the game just for the online play, but like 40k's storyline give the campaign a try, it is well worth it. I managed to run through the game without accruing any corruption, and that seemed to add to the outcome for the campaign. I'm interested to try without being so scrupulous and see if it changes the game outcome.