All true. Look at the shooting of Breonna Taylor for an example of a suspect shooting at police and legitimately not getting charged.

Taylor's boyfriend was a drug dealer in a "money house" and when he heard banging on the door, he didn't hear anyone calling out "police", so he posted up into a defensive position in a hallway in front of the door. He said he assumed it was Breonna's ex-boyfriend (who was a rival drug dealer, who had been known for armed robberies, and who'd threatened to kill them both). Breonna stupidly stood next to him in the middle of the hallway. When the door kicked open he fired at the men coming through he door, they fired back (killing Breonna). Once he realized it was the police, he immediately surrendered.

He was arrested afterwards, and charged with attempted murder, but the charges were dropped because he actually felt like a rival drug dealer & psycho ex-boyfriend was going to kill him. Once he understood it was the police, his co-operation was paramount to his survival and his innocence. Even though he was a criminal doing illegal things; and even shooting at the police himself; surrendering to the police was his first priority into staying alive and going free. Putting the gun away, and complying with the arrest, is the only sane option in every plausible situation.