Board Thread:Warhammer 40k General Discussion/@comment-185.37.86.69-20160206091809/@comment-26516936-20160213071654

Guilliman's greatest fault was that he tended to believe his own expectations & predjudices & while his strategic thinking was quite broad his faults did leave holes that the unorthadox could exploit. This was a fault that neither Horus or the Lion had, both had a greater appreciation of unorthadox tactics & as such both were better able to use & defend against such.

Gulliman was adaptable however & learned from his mistakes as he did when Corax using his unorthadox Raven Guard tactics beat Guliiman in Guilliman's own wargames simulator the 1st few times they competed but never beat him again after Guilliman adapted. Still the flaw exists & someone skilled enough in unorthadox tactics could beat him the 1st time they fight him as the Alpha Legion (likely lead by one of Alpharius/Omegon) completely out manuvered Gulliman folowing the supposed death of one of Alpharius/Omegon.