Visible crew/equipment: Immediately after the scene of The Executioner beginning his walk to the prison, there is an aerial shot moving toward the prison in which the camera plane's shadow can be seen on the right of the screen. (00:45:20)
Visible crew/equipment: When Chris is released, he stands in the doorway and says "I wondered how long it would take." When he does a boom arm can be seen moving in the glass to screen left. (00:49:20)
Answer: Wesker needed to consume fresh DNA to help control the T-virus. He was eating people who had been captured. This scared the crew enough to abandon ship.
LorgSkyegon