So, hold on.
Because "The Contract" is the fifth song on Breach, that means that the story with Clancy and Nico seizing him while the battle is going on, is further being told after Track 5 ("The Contract") when we consider the album following the narrative in order of the songs.
That would imply that the Tracks 1 to 4, or just one or two of them, could explain the history of Dema or the Bishops. Espacially the song title "RAWFEAR" being in the same writing style as Blurryface, it could be a personal song about Nico becoming a bishop.
And "City Walls" being about the situation inside Dema preparing for the battle.
"Drum Show" and "Garbage" sound like non-lore songs to me.
But what do you think?
#Track 1-4 explain the History of Dema/Bishops/Trench
unkempt barn
unkempt horizon
if RAWFEAR was blurryface it’d probably be RAWF EAR
austere apex
Breaching City Walls definitely falls in line with your train of thought. RAWFEAR is another one as RAWFEAR is the emotion one may experience prior to knowing or entering into any kind of warfare (physical, mental, emotional). I am not sure about Drum Show or Garbage (Garbage is also an anagram for rage bag lol).
I think that Center Mass and Tally may be related to these themes. I definitely feel the first two could logically make your point though. Tally also tracks with PS on the use of aviation terminology, with PS referencing the point of no return.
unkempt horizon
plus the origin of “raw fear” describes clancys emotions, not Nico’s. Here’s my theory for RAWFEAR: https://discord.com/channels/269657133673349120/1394727456241619026