My Theory:
After fiddling with the console, David accidentally wakes Mr.Jockey from cryosleep. Merc freaks out because guess what the Jockey just swatted David's Head clean off, obviously pissed because of these weird people on his ship. Merc shoots at him, Ford is terrified beyond belief incapacitated with fear.
Merc gets swatted away, Ford's head gets crushed.
End scene.