Pinky: You don't look like a "Mac."
Mac: Katsuhiko Kumanosuke Takaashi.
Pinky: So, Mac.
Corporal Dean Portman: I'm gonna lock myself in a motel room with a bottle of tequila and three she-boys.
Sarge: Semper Fi, Motherfucker! Faithful to the corps John.
Sarge: Kill them all, let God sort them out.
Sarge: Eliminate the threat.
The Kid: What threat?
Duke: It goes that this see, if its trying kill ya. Its a threat.
Sarge: I've got one round.
The Kid: Is it always that rough?
Pinky: Believe me, it used to be a lot rougher. There was a time when Ark travel was susceptible to, let's say major turbulence.
The Kid: What's he mean?
John Grimm: He means he went to one galaxy, his ass went to another.
Pinky: Call it a scientific miscalculation.
John Grimm: Like The Kid said, "Go to Hell".
Pinky: Portman, I got floor and wall on your gun cam.
Corporal Dean Portman: I'm taking a shit, you fucking gimp.
Corporal Dean Portman: Ladies, we're under a Level 5 quarantine so I'm gonna have to strip search you girls.
Samantha Grimm: 10% of the human genome is still unmapped. Some say it's the genetic blueprint for the soul.
Corporal Dean Portman: I don't believe this shit. Six months without a weekend, and the goddamn transporters are five minutes late. Now that's 5 minutes of R and R that I ain't gonna get back.
Duke: Relax baby, we're on vacation.
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.