- Kameiras training begins at six, I see no reason why operations could not take place during this time. As far as the brainwashing, I don't see it like that. Why would the empire cook someones brain etc? They are born as Kameiras, their loyalty is bred deep, voluntary. They know the reality of Amarr and are not lied to, thar is what makes them the very most dangerous, they can't be 'melted' if they truly belive. Any who weren't true belivers would be washed out of the program, used as target holders or even killed by the other children. To me that is much more dangerous that ignorance and brainwashing.
I disagree.
I see Kameiras education exactly the same way Talibans and Al Kaida train their troop soldiers. You will never see one putting into question everything they are told, for the sake of God [Allah].
Some might eventually fall under pressure from torture, or dire/stressful situations since they are still human, but voluntarily turning against their masters after a sudden epiphany ? I don't think so.
In any case, Kameiras are "brainwashed". Actually no, they are not really brainwashed, since brainwashing implies "washing" everything else to return to a clean slate where indoctrination can begin, and Kameiras are indoctrinated starting in their first years, so there is not even washing in the first place. All they have known is God, their masters, and what they were told and how to think. In a way, it's even worse than islamic extremists that sometimes just have an epiphany and go full jihadi terrorists like illuminated zealots.
It's written nowhere that Kameiras are explained calmy and rationally things about religion. In fact, I don't think that they receive any theological education.
Of course it is not impossible for some to fall between the crack and get captured and reindoctrinated by Valklears or whatever. It's just not easy. Have you ever tried to turn someone indoctrinated since his/her first years into believing something without any compromise ? Especially with religion ? One of the only reasons that person would do so, would simply be that he or she somehow falls to some logical, rational, irrefutable proof of what he/she did wrong... And how do you do that, with someone that is to begin with completely impermeable to logic and rationality itself ? How do you tell someone that what the Amarr do is wrong since they strongly believe it's actually right ? Concepts of freedom, humanist or universal rights are as much as alien to a Kameira than slavery and celestial order would be to a die hard Gallente.
I think however that one of the peculiar face of the Kameira is their total devotion to their masters. As long as the master is an embodiment of God (True Amarr or else), the Kameira will see him or her as the only true voice of God. And whatever the master decides or how the master behaves, the Kameira will obey without question, since it's the word of God. The Kameira is not educated into rhetorics and theological questionings. The Kameira is taught to kneel before God and molded as a tool for the Lord. A weapon does not question, and like Andrew Ryan said in Bioshock, "a man chooses, a slave obeys".
The only thing they value is their worth as ultimate divine weapons and their loyalty to their masters (and thus, God). A Kameira could not understand free will even if he/she tried to. They would be lost without orders and masters. They are not taught to be self sufficient. They are taught to be dependent of their masters, and are indoctrinated into believing unconditionally into a strong esprit de corps.
So, in order to break all this and transform a Kameira into a singular, self conscious, free entity, would rather need serious and reasonable explanations, since all these traits are the exact opposites of what a Kameira is in the first place : a slave, an ignorant zealot, and a member of a collective of brothers/sisters bond by the blood spilled on the battlefield (they even go so far as burning their dead comrades and put their ashes into their wounds to carry them along, to the horror of their masters).
Edit : the devotion of the Kameiras leaded me on a whim to add a duality to my own character by introducing a loyal, fervent Kameira of her family to stick with her, whatever she thinks, whatever are her true beliefs or faith, whatever everything actually. She is just of the blood of the master he served, and so, a figure above him blessed by God, and so he serves, and never questions. The simple idea that his master (my character) would be somehow going against God's will is heresy, even if it might be the case. It is not for him to question that. Which makes him cling to her like a loyal, unswerving pet where she, at the same time, never asked for this and actually despises him for what he represents, and for his true essence, as well as the reminder of her birth and obligations. Well, at least that's how I interpret all of this.