 CONT: During the opening cinematic, while Hunks team is being  decimated by Birkin, a commando is shown cowering backwards in fear  while firing his MP5. On top of the weapon there is a form of red  dot sight, possibly an aimpoint. When Birkin impales the hapless  commando and the gun goes flying, the scene cuts away to a shot of  the gun hitting the ground in slow motion while still firing. In  this shot, the scope/red dot sight is no longer present.