At checkpoint bravo, you are greeted by two falcons. If you get in these falcons, and then shoot enough marines, you will jump out of the falcon, have no weapon, and die in 3 seconds. You die no matter what. You are defaulted to the sprint AA.
When the marines turn on you, you eject, run around like a chicken with its head cut off, and mysteriously die. This has been seen by many people here before but I'll document it here.