MGSV: Ground Zeroes - No Weapons Trial - Hard - Destroy The Anti-Air Emplacements

The 'No Weapons Trial' for the 'Destroy The Anti-Air Emplacements' mission of Metal Gear Solid Ground Zeroes on hard difficulty. I saw this on a MGSV:GZ stream recently so thought I'd try it. The streamer made it look a lot easier than this though lol. I had trouble destroying one of the emplacements, getting the armoured vehicle's attention and controlling my helicopter pilot. Feel free to skip from 1:55 to 5:05