Просто меня смутили некоторые фразы:
" Ferrus chose the fastest of the Legion's ships, and together with his most veteran troops, sped towards Istvaan V ahead of the rest of the Legion. As they had feared, the majority of the fleet arrived too late to take part in the attack, and it was with dread and horror that they learnt of the disastrous treachery that had greeted their Primarch's attack"
Он вступил в бой не с основными своими силами.
"The number of the Iron Hands were few, however, and they alone were not enough to back up Ferrus's attack, though they died trying. The Iron Hands have never forgiven the Salamanders or the Ravenguard for failing to follow his lead."
Наверное их наезд на другие ордены был несколько поспешным.
Хотя если есть более существенные источники, я бы непрочь послушать.