Yeah, but I still don't see the need toharvest the brains from children to do that. It just seems like it's needlessly evil and complicated. Plus it was what turned Raiden against them all.
I mean, yeah, considering how crazy the story is in this game, i probably shouldn't dig too hard at it, but still...Why the child brains?
I took it like this:
armstrong needed the child brains to create an army so that it could fight with itself. He controls both world marshal and desperado so he could use the child cyborgs to bolster the numbers for both world marshal and desperado to create a pseudo-war. The reason for using child brains is because they're easier to train via VR, much like raiden was as a child. In the same way it's easier to learn a language as a child it would be easier to turn them into trained killers