Continuity mistake: The police van with Matrix inside pulls away from Cindy and drives for about 30 seconds including the fact that Cindy fired two rockets at it, and, yet, when it stops it is still much too close to where they began and this is even after someone misfired a rocket at them.
Continuity mistake: Matrix slams the caterpillar into the gun shop through the metal gates and continues for several seconds, it appears that the metal gates are knocked down a few times. Also, the caterpillar winds up very close to the window even after Matrix drives it for several seconds once inside.
Continuity mistake: When they arrive at the airport, Matrix closes the door of the car, and the window is almost closed. But, in the next shot, when Bennett says that he'll be ready, he is looking through a completely open window.
Other mistake: At the end when Matrix gets into the sea plane the the landing gear is down - the landing gear is for ground landing only. Also shown earlier in the film before Matrix starts his assault.
Continuity mistake: When Matrix leaves the plane rowing a boat there are two angles on Cindy: In the close-up her hair remains still, but in the wide angle there's a strong wind blowing it. This changes back and forth.
Continuity mistake: After the rocket-launcher scene Matrix's daughter is sitting on the floor with a wrinkled curtain at her feet. A shot later the curtain is less wrinkled.
Continuity mistake: When Arnold is crashing into the gun shop in the caterpillar you can see the camera to the rear (a black round one) and then also the camera at the front can be seen as a yellow box, attempting to be disguised as part of the engine block. These quickly disappear in subsequent shots.
Revealing mistake: When Matrix sends Sully to his death by dropping him off the edge of the cliff, in the shot of Sully falling it is an obvious dummy.
Continuity mistake: During the motel room fight scene when Cooke crashes into the other room, the door separating the rooms changes between shots. When he first crashes through the door it's just a wooden door with a large brass knob, but when he lands on the floor in the other room the door is now surrounded by a white frame and the knob is visibly smaller.
Continuity mistake: After killing Henriques on the plane, Matrix asks the flight attendant how long the flight to Val Verdes is. When he asks her the question, her hand is on the curtain separating first class from economy, but in the next shot her arm is by her side when she answer's Matrix's question.
Continuity mistake: In the dealership, Cooke never shifts the Cadillac into reverse, and yet instantly starts backing up after he says he likes "the price." The car would have had to be in Park or Neutral in order to be cranked up and would not start in gear.
Continuity mistake: In the final fight scene Bennett opens a furnace door into John's face, knocking him to the ground. When he opened the door it was two half-doors that opened together, yet in the next shot when he rips the door off to throw at John, only the bottom half is still there.
Audio problem: When Cooke starts up the Cadillac in the dealership you hear the engine turn over and fire twice.
Audio problem: When Arnie sets his stop watch to count down from 11hrs, each second that the watch ticks over there is a loud 'beep'. This is consistent with when he looks at his watch later in the mall, when it reads 9hrs 40mins to go, his watch is still beeping every second. Therefore, Arnie's watch should have been beeping every second of the movie in between these two scenes, but we never hear it. Also, when Arnie and Cindy arrive at the Sunspot Motel (7hrs 57min to go) and when Arnie's in the back of the police wagon, at 5hrs 2min to go, the watch no longer beeps with each passing second.
Continuity mistake: When Matrix's daughter dirties him with ice cream, he turns his head to the left, yet in the opposite angle the head remains straight. (00:05:50)
Continuity mistake: When Matrix's daughter brings the sandwiches and he talks about Boy George, the magazine is sometimes on top of the sandwich or side by side to the dish. (00:07:45)
Continuity mistake: After Matrix's daughter puts ice cream on him, the ice cream on both him and her's changes from higher and lower positions between shots.
Continuity mistake: During the initial credits, the amount of ice cream on Matrix's nose and lip decreases between frames.
Continuity mistake: When the movie ends and Matrix is about to get in the hydroplane, the faded paint on his nose becomes much darker. (01:26:10)
Continuity mistake: When Matrix arrives to the beach in a rubber boat he has black swim pants on. When he jumps out, they are grey (far shot). When the camera switches back to close up, the pants are black again. (01:07:00)
Answer: Possibly so any surviving enemies they encountered on previous missions and or tours of duty couldn't hunt them down and kill them for revenge.