How I want to rewrite FFXIII (major spoilers)

In discussing a mutual obsession with Sissy, I have come up with an AU plotline for Final Fantasy XIII which would've made the endgame more satisfying and fixed at least one problem that probably jumped out as a sore point for most game players, even those who are not in any way hung up on Paula Tiso.

( Fixing the Colonel Nabaat Problem... )