Factual error: Semi-automatic guns don't just click empty, like they do in a lot of movies. The slide would lock back until you manually cock the gun. Yet in the corridor of light scene, this is exactly what happens: Alice's gun just clicks when it's empty.
Factual error: Alice and Ada blow up a taxi by shooting the gas-tank. Shooting the gas tank of a car won't blow it up - as was tested by Mythbusters. (00:38:15)
Factual error: Rain injects herself with the Las Plagas parasite, which seems to take the form of a little scorpion. Little or not, it's not small enough to be pushed through an injection needle.
Factual error: Typhoon-class submarines have a crew of 163 men. It is impossible for Jill Valentine to operate a submarine on her own, even with help from Rain.
Answer: She must have had trouble in keeping control of the elevator's power as the impact of the explosion blew out some of the windows and the sea came rushing in.
Bunch Son