Recently, the invincibility bug has been annoying players. To temporarily stop this, SOE disabled all forms of invincibility (including the VR). This may sound like an excellent opportunity for griefers (sadly it is), but it is also an excellent opportunity for dogfighting practice. To do this, simply go to the VR with a friend. Invite them to a squad. Pull a reaver with your friend's favorite load out (have your friend do the same), then lock your vehicle to squad/platoon, then swap vehicles. Now you can damage eachother without getting grief points and dogfight all you want. I recommend using fire suppression and fighting until fire, then the person with most health at end of a duel wins. Also, I do not think this is considered glitch exploitation since it is not harming anything and SOE purposely made this possible.
