Plot hole: The Sheriff decides to go out in a blaze of glory by flying the helicopter into the robot. The robot has already stopped right next to Van Ryberg and the Doctor, yet the Sheriff still thinks flying a helicopter full of fuel (as witnessed by the huge explosion) is the best way to save his friends. Quite simply, if the robot didn't kill them, the massive fireball from the crash certainly should have.
Plot hole: The Sherrif and the two occupants of the police car get away from the black SUV, and the female says "I think we lost it", as that was the intention. Bizarrely, in an attempt to 'lose' the SUV, they park the police car in the centre of the road with the lights on the roof still lit, which then means the SUV finds them easily, making no sense whatsoever.
Plot hole: The NSA guy states that Van Ryberg "knows more about remote controlled attack drones than anyone on the planet". A bold claim, considering he was only a Specialist in the Army, would have been trained by someone more technically competent on Reaper and Predator drones, and is not likely to know more about them than the company responsible for their manufacture in the first place, which makes his inclusion in a Top Secret affair unlikely and improbable.
Plot hole: Van Ryberg is told that the terra forming plant had C4 laid everywhere, and that it just needed someone to go in there and set it off. Firstly, what Van Ryberg finds is dynamite, not C4, and he also tells Madison and the Doctor that they only have ten seconds to get out. If the timer was already running, then there was no need for anyone to go into the plant to set off the explosives.
