The AV-8B is a type of aircraft seen in Chapter 1.
Chapter One: Welcome to UnderhellEdit
At the very beginning, 6 jets are seen on the runway on the surface of the A.R.C.. Near the end, a harrier attacks the 5 remaining A.R.C. security guards (Jake, Terry, Ben, Bryan and Junior), but crashes while charging towards them at the Eastern Core Access. Bryan then shoots the pilot, killing him.