the Troopers keep the audio running so often, they forget they have it going. These men didn't act any different with audio going than they would have without it going. They knew they were up against a Volcano temperament of a person. They knew he had already pointed a weapon at A peace officer. They did all they could to take him into custody fairly. As you stated they tried to deescalate the situation. There is No IF they were properly trained. They were, and were shot in the back by a coward who is now trying to get out of it.