The states of Nevada and Arizona are stated to be northwest states; they are southwest states.
In one communique during the last mission, the phrase 'The safety of our guests comes before dollars are cents'; it should be 'The safety of our guests comes before dollars and cents'.
Colombia is misspelled as 'Columbia' in in-game text.
No appliance or other device is connected to a wall outlet.
Despite taking place two years after Human Revolution, the bodies of the construction workers who fell victim to the events therein have not decomposed.
The armour of the police in Prague only covers one arm, which is insufficient coverage.
In the final mission, a communique found on a hostile NPC states that the Opposition has control of the cameras. Despite this, the Player can deactivate the cameras, an action which should alert the Opposition to his presence if they are monitoring the camera feed.
When Mr. Jensen sabotages the helicopter in Dubai, he simply removes the battery and tosses it onto the ground. This is hardly a sufficient way to sabotage a helicopter, as the battery can simply be put back in.
NPCs do not seem to care if the Player takes something from their area.
Occasionally a passcode in an area may be the same as the passcode the door leading to the area. This does not make sense from a security standpoint, as all codes should necessarily be different.