John Brown I'm not sure to be honest. I do remember this played numerous times throughout Centralfiction especially at the end before Ragna's last two fights.
This sounds a lot like Homecoming from Xblaze, so I thought that they might've been the same song. After hearing the two, there are some differences, so I'm probably wrong here. There are some parts of this song that sound very familiar, like from 0:27 to 0:33.
I might be late in this, but the new songs in the story were composed by Kikuo which did the XBlaze soundtrack and all of the them use in a way or another some of XBlaze arrangements.