User blog comment:Seieireppa/God Eater ∂: Those Who Change History, chapter 5/@comment-14812118-20150425160351/@comment-1419424-20150425163054

That's the whole point. Compared to modern-day God Eaters, the Kamigui are far more efficient due to their training, which encompasses kenjutsu (as opposed to kendo) and other martial arts as opposed to just how to fight.

As an aside, the Quadriga family doesn't exist in this fic for obvious reasons. Neither do the God Arc Soldiers (at least in their classic form), but that should go without saying.