"This has been going on in Kawerau right up until March 9, 2016."
Warren said he was had stayed up all night and was asleep in his grandmother's home when he was woken by a loudspeaker and the sound of smashing windows.
"I thought I was dreaming. I jumped out of my skin, I was frightened."
He grabbed his grandfather's hunting rifle from under the bed and loaded it.
"Next thing, I saw a rifle aiming up the hallway, so I shot the gun.
"Bullets came from every direction. The 46 rounds fired by the two AOS officers felt like hundreds," said Warren.
"I reloaded and put the gun around the corner, I didn't see anyone, and fired just to scare them out of the house."
Warren said he never fired at the police aeroplane, as alleged by the Crown, and did not fire at the police outside the home after the initial firefight in the hallway.
"I was scared, I thought l was going to die. It was never my intention for someone to get hurt. I was scared."
Crown prosecutor Aaron Perkins QC cross-examined Warren and pointed out one of the officers outside the home was injured by a shot fired after the hallway exchange.
But Warren said that was part of the police "cover-up".
The cross examination continues today.