This seems to be missing "Black Onslaught II" (Boss Ragna).
WHAT A BIG BIG MISTAKE, it would have fit disc 3.
EDIT 2018:
List of missing music (
after this album)
- Black Onslaught II (Boss Ragna) [Chronophantasma]
- Silent Scream (Terumi) [Centralfiction]
- MUST DIE (Susano'o) [Centralfiction]
- VARIABLE HEART (Mai Natsume) [Centralfiction]
- God of War (Hakumen VS Susano'o) [Centralfiction]
- THE WORLD END (Boss Izanami) [Centralfiction]
- HAKAISHIN (Boss Sunano'o) [Centralfiction]
- END GAZER (Es VS Nine/Celica) [Centralfiction, actually from XBLAZE LOST:MEMORIES OST]
- Stand Unrivaled (Jubei) [Centralfiction]
- Blazblue Chronophantasma 2.0 Arcade Opening
- Blazblue Chronophantasma 2.0 Arcade Ending(?) [Stardust memory variation]
- Blazblue Centralfiction 2.0 Arcade Opening
- Centralfiction system music (title, select, menu, vs, winner, game over, etc)
- Some story tracks (including a few from older games)