The U.S. Navy, U.S. Coast Guard, and U.S. Customs and Border Protection do not use the EH101 helicopter.
"Serbia and Montenegro" is listed as a country in the game when it broke up several months before the game's release.
The World War II Memorial in Washington, D.C. which was built 2 years before the game's release is not there in-game.
The location-specific scenery depicts a giant factory with smokestacks as being located near the intersection of Maryland Avenue and North Frederick Avenue in Gaithersburg, Maryland. No such building exists.
Washington, D.C. is listed as being in Virginia when it is not.
All the ATCs around the world speak in perfect North American accents.