Though I was just really confused on why it was in there, I already have westlys replacer so I didn't know why I would have another one, but that could just be my bad memory. It is not part of MGSO, at least it doesn't appear in my MGSO-only install. The 'DDBA' denotes an optional esp with delayed Dark Brotherhood attacks, it delays the attacks until the player has been named either Hortator or Nerevarine. That's Dimitri Mazieres 'Dark Brotherhood Armor Replacer Expanded'.
