Question

Almost without knowing it, Montages hands switch off the safety on the flame thrower aimed at Beatty. What does this show about Montag's state of awareness or consciousness?

Answer 1

Montag knew this moment was coming. Captain Beatty was emotionally unhinged and one of them had to die. It does not help that Beatty taunts Montag: who has just lost everything including his wife and house. I think Montag also knew Beatty wanted to die.