Continuity mistake: There is blood on Samantha's gloved hand when she presses the keypad, but there is no blood on the keypad after she removes her hand.
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Doom (2005)
Plot summary
Directed by: Andrzej Bartkowiak
Starring: Dwayne Johnson, Rosamund Pike, Karl Urban, Ben Daniels, The Rock, Deobia Oparei
Something goes wrong at an isolated scientific research station on Mars, run by the Union Aerospace Corporation (UAC). Communication from the station has failed with all research stopping. The only messages that are received from the station are more than slightly disturbing. Whatever happened caused the facility to undergo a level 5 quarantine, with the only souls allowed in or out being the Rapid Response Tactical Squad (RRTS). The RRTS is a team composed of hardened Space Marines armed to the teeth with enough firepower to neutralize any thread these soldiers come across. The research being done at Olduvai station has unwittingly opened a door, and all hell has broken loose. A legion of nightmarish creatures of unknown origin lurks behind every wall and stalks the countless rooms and tunnels of the facility, killing what few people remain. Sealing off the portal to Earth, Sarge (Dwayne "The Rock" Johnson), Reaper (Karl Urban) and their team must use every weapon at their disposal - and some they find along the way - to carry out their orders: nothing gets out alive.
Thomas Huf.
Corporal Dean Portman: I'm gonna lock myself in a motel room with a bottle of tequila and three she-boys.
Trivia: At one point Sarge tells his men to kill the remaining civilians to prevent the infection from spreading, an order which they all refuse. According to the back story of the first Doom game the reason the main character was sent to Mars in the first place was because he refused an order to kill innocent civilians.
Question: The scientists of the genetic research lab were first attacked by the Hellknight monster, which was actually the human test subject. Since after the incident the research lab was quarantined and the first Hellknight could have gone nowhere, how is it that the Marine troops didn't encounter the first monster even once when they entered the genetic research lab?
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Answer: This is explained by the fact that it was likely hiding, waiting to see what the RRTS would do. After all, the human test subject still had its personality, as far as is known. It would've waited to discover their weaknesses, stalking them like a predatory animal stalks its prey.