Sarge: Semper Fi, Motherfucker! Faithful to the corps John.
Sarge: I'm not supposed to die.
Sarge: Kill them all, let God sort them out.
Pinky: You don't look like a "Mac".
Mac: Katsuhiko Kumanosuke Takaashi.
Pinky: So, Mac.
[after Sarge shoots Kid]
John Grimm: [shouting] It was his first mission!
Sarge: And it's not gonna be my last.
Samantha Grimm: 10% of the human genome is still unmapped. Some say it's the genetic blueprint for the soul.
[about the planet's extinct inhabitants]
John Grimm: If they were so smart, how come they're so dead?
Samantha Grimm: We don't know. Maybe they just went with time.
[John looks at the position of the skeletons]
John Grimm: You don't shield a baby from time.
Sarge: Are you gonna shoot me?
John Grimm: Yeah, was thinking about it
Sarge: What you got left?
John Grimm: Half a clip. You?
Sarge: [points BFG] I've got one round.
John Grimm: [approaching a mangled Scientist] Sir, are you okay?
[scientist turns to face him and bites the head off of a live rat]
John Grimm: Okay...
[first lines]
Samantha Grimm: [narrating] In the year 2026 archaeologists working in the Nevada desert discovered a portal to an ancient city on Mars. They call this portal the Ark. Twenty years later, we're still struggling to understand why it was built and what happened to the civilization that built it.
[last lines]
John Grimm: Almost home.
Corporal Dean Portman: I'm gonna lock myself in a motel room with a bottle of tequila and three she-boys!
[after blasting a hole in the wall with the BFG3000]
Sarge: Holy shit.
Goat: Be sober; be vigilant because your adversary the Devil walketh about seeking whom he may devour.
Corporal Dean Portman: That's real comforting Goat, that ain't freaking me out at all.
Sarge: [after unlocking Bio-Force Gun vault] Big fucking gun.
Duke: [after meeting Samantha] Please tell me you didn't let a fine piece of ass like that get away from you, Reaper.
John Grimm: She's my sister.
Duke: No shit?
Destroyer: Don't do this again, man.
Duke: Do what?
Goat: God damn it!
[takes out a knife and carves a cross in his arm. He sees Reaper watching him]
Goat: I took His name in vain.
