[@Jyoliod]

The Night Lords hate being controlled, because they are the ones who control through fear. They see devotion to and corruption from the Ruinous Powers as a sort of enslavement, when Chaos should be a weapon they wield with impunity. The daemonically possessed Captain Vandred of (what remained of) the Legion's 10th company insisted that he "controlled this." And a Legionary Khornate Berzerker even had the gall to say that he "worshipped nothing," and that he was using Khorne's favor as just another weapon.

I highly recommend the novel series. Even though Talos, Cyrion, Uzas and Xarl are self-admitted murderers, traitors and sadists ("If there is a Hell, I will join you soon, brother,"), and you can't really put away all the innocents they kill across the books, you learn to empathize and sympathize with them. I found myself quickly coming to cheer for every loyalist or xenos kill they made, and worrying over the cracks in their armor after every battle.

I also learned that even chaos marines can crack a few jokes here and there.

[quote]
[i]“Nice sword, Night Lord,” the Terminator rasped, gesturing its storm bolter at [/i]Aurum[i] pointed at his chestplate. Talos sighted down the golden blade, reading the lettering across the warrior’s armour: FALKUS, in faded indentations. 

“Please,” Cyrion voxed over the intra-squad channel, “tell me that rhyme wasn’t his attempt at wit.”[/i]
[/quote]