Battlefield 3's in beta, which means that bugs will pop up. This might be one of the more entertaining ones we've seen so far, where the plane being piloted disappear around the player. You'd think a guy floating in mid-air would be a sitting duck against a fighter jet, right? Wrong.
UPDATE: Seems that this isn't a glitch at all and is really the player ejecting from the jet, pulling the ripcord on his chute and equipping his rocket launcher. Still impressive. I'm guessing you're going to see a lot of this when Battlefield 3 launches
[Thanks, tipsters Steve and Kyle!]