Board Thread:Warhammer 40k General Discussion/@comment-94.3.72.36-20131224225315/@comment-9676764-20140518200957

Angron wasn't on the same level of his brother primarchs on the imtelligence/tactical scale, but he was certainly as good at most other things as they were, including having a strong morality (comparitively speaking). the only reason he turned from emps was cause he thought that he was dishonorable in letting his army die, so emps may have earned his loyalty by saving his army.