Revealing mistake: Near the end of the film, a B-52 seen flying across the screen. The bracket holding up the model is visible.
Deliberate mistake: As the Soviet tank starts rolling, the tank commander obviously uses a hidden step to mount the tank. Soviet T-55/T-62 type tanks did not have steps for mounting by the wheels and axles; to mount a rolling tank using the moving wheels or spinning axles would result in the mounter being immediately crushed and killed.
Factual error: MacKenzie is referred to as "Gunnery Sergeant". This is not a rank used by British and Commonwealth forces. He actually wears the rank insignia of a Flight Sergeant.
Other mistake: When Hambleton comes across the hooch where he gets attacked, upon spotting the hooch he racks the slide on his 1911, loading a round in to the chamber. When he is fighting the villager he racks the slide again to load his pistol.
Continuity mistake: After Chuck Norris throws away the pimp during the initial evacuation of the embassy, the man pulls out a gun and shoots Chuck Norris from behind. The bullet hits him in the right shoulder but at the next moment - seen from his front - the wound is on his left side.