Originally Posted by
pulsor93
That said, I feel like there is a (hopefully) reasonable explanation for what a lot of you guys have been calling "fan-wanking of Kiritsugu".
My theories:
a) Angra Mainyu had something to do with the visions Kiritsugu received, and has been subtly manipulating the Mage Killer into orchestrating his release.
b) Angra Mainyu has nothing to do with the visions, but has caught on to Kiritsugu's plans, and forced him into the war as payback and to potentially cause him more pain by making him kill his children.