Changes

At the end of the game, after defeat defeating the Spider Mastermind, Samuel Hayden activates the dimensional tether and pulls Doom Slayer back into the UAC facility. He proceeds to tell Doom Slayer that they have won, but at a cost of the entire UAC operation. He then reveals he has been watching them, and has determined their motivations differ, in that Doom Slayer believes Hell must be destroyed entirely, and while Samuel admits that they may be right, he believes humanity needs Argent Energy. He then steals the Crucible by somehow pulling it through the air into his hand, stating that with it, he can continue his work. The Crucible then turns into some sort of red energy blade, and Hayden states that while he can't kill them, he would not allow them to stand in his way, and uses the dimensional tether to teleport Doom Slayer to an unknown location, before the end credits start to roll.