I notice there's a deleted Deacon's betrayal scene that was never used in Fallout 4. It totally sounded more like a Betrayal/Crisis scene.
I'd bet that this cut was later used for Preston Garvey in Nuka World DLC.
I wouldn't be surprised if it accidentally bugged so it wouldn't play, like the Vault 81 GOAT sequence.
Also I love how he says "I can't let you go to the church, this ends now." Whilst he is surrounded by people in power armour and have laser rifles.
It's funny how Fallout is riddled with content that is inaccessible because of some messy code. Multiple endings in Fallout 2 can't be seen because of bad coding.
What do you think?