My tears shed when I realied Avitus was to be the traitor (and my tactics suffered a heavy blow in the process). I really liked the way he was
"Fear denies faith. Faith denies fear." Now I'm not sure who quoted it or if it was even a Space Marine quote, but I love it all the same.
"Only in the Space Marines of the Legiones Astartes are courage and expertise perfectly blended. In other troops they are present in varying degrees and proportions, and many scholars have debated their relative merits. For my own part, I come down on the side of courage. For courage can sometimes make a virtue of inexperience. I myself have commanded Imperial Guard troops whose probitor units have achieved great things, because they were too inexperienced to realise that their goal was impossible." - Leman Russ, Primarch of the Space Wolves, on the military use of Whiteshields, De Natura Belli, Book XIV
"What need have I of ranged weaponry? What good is it to kill the foe from afar when I could laugh in their face as I crush their skull with my fist? Why gun them down when I could mock their heresy even as their fragile forms are ruined and broken by my hammer?" - Sword Brother Bevaurn of the Black Templars
Avitus was a tragic figure indeed...his hatred for the enemy and his disregard towards the imperial guard slowly consumed both his mind and heart...the battle of Victory Bay taught him that there was only death and destruction...his downfall was only a matter of time. In the end, he was another tortured soul ready to be "harvested" by the vile Chaos Gods. So my brothers...let us never forget the reason of our existence!! "They shall be my finest warriors, these men who give of themselves to me. Like clay I shall mould them and in the furnace of war forge them. They shall be of iron will and steel sinew. In great armour I shall clad them and with the mightiest weapons they will be armed. They will be untouched by plague or disease; no sickness shall blight them. They shall have such tactics, strategies and machines that no foe can best them in battle. They are my bulwark against the Terror. They are the Defenders of Humanity. They are my Space Marines and they shall know no fear." - Emperor of Mankind
"I am armoured by the Emperor himself ...Righteousness is my shield. Faith is my armor and hatred my weapon. I fear not ,and I am proud ,for I am a Son of Sanguinius ,a protector of mankind. Aye ,I am indeed an Angel of Death" - Brother Rafen - Oath of Loyalty after Litany of Armament - Deus Sanguinius
Add to the facts that Avitus distrusted the Chapter itself for his secrecy policy and forgetting its own Primarch ,and 'cause of Kyras requests for information for an "ally" ,who ended up being Eliphas himself