At the end of 'Safehouse' Captain Price draws his hand gun from his holster, turns and shoots Al-Asad, handgun in hand. However, his handgun also remains in his holster, meaning he is suddenly carrying two pistols. Also the sound of the gun he shoots him with is that of a Desert Eagle the same sound from when Al-Fulani is executed, but in the hands of Captain Price is a 1911 Colt.
In "Hunted", there are, at most, five men on the ground escaping; Captain Price, Gaz, Soap, Nikolai, and one other SAS soldier (normally Sergeant Arem). However, in "Death from Above", we see at least eight operatives on the ground escaping.
Right near the end of the mission "Hunted", the AC-130 gunship introduces itself with the call sign "Warhammer". However during the next mission "Death From Above", Captain Price calls the AC-130, "Wildfire".
In the mission "The Sins of the Father", Capt. Price orders a number of Russian loyalists as well as some SAS men, including Soap, to disguise themselves as Russian ultranationalist soldiers. After a firefight breaks out Soap is ordered to track down the target. Gaz is one of the SAS operatives disguised as an ultranationalist and stays with the rest of the men in holding off other ultranationalists. At this time Gaz was still in his disguise, but after catching up with Soap he is back in his normal outfit just minutes later. How could Gaz switch from one outfit to another if this event took place in a span of a few minutes, especially if Gaz was caught up in a firefight?
The helicopter gunship named 'Deadly' returns to base to re-arm and refuel. It is back in less than 10 minutes. It takes far more than 10 minutes for a helicopter to travel to its base, re-arm and refuel, and return to the battlefield.
In the mission "All Ghillied Up" several Mi-28 'Havoc' attack helicopters appear. However the mission takes place in 1996, twelve years before the Mi-28 entered service.
Throughout the game, many Russian loyalist soldiers are wearing ushankas (Russian fur hats) with the hammer and sickle emblem on it. This was the coat of arms of the USSR. However, since the collapse of the USSR in 1991 the hammer and sickle is no longer the coat of arms for Russia. Instead, the Russian loyalists should be wearing ushankas with the double-headed eagle, which is now the coat of arms of Russia.
The intro video for the mission "Death From Above" refers to the aircraft as an "AC-130 Spectre". The name "Spectre" refers specifically to the AC-130H variant, but this variant is not equipped with the 25mm "Equalizer" Gatling gun shown both in the video and the mission itself. Only the AC-130U "Spooky" version of the aircraft is armed with this weapon.
Some S.A.S. commandos and the player can have M4A1 Carbines and M249 SAWs while the real S.A.S. carries the Canadian C8 SFW and the FN Minimi.
The Abrams tanks in the game are supposedly M1A2 tanks, but their in-game model lacks the Commander's Independant Thermal Viewer, or CITV on the turret, which is a distinctive feature that only the M1A2 Abrams has. The lack of the CITV means the tank in the game is an M1A1 Abrams, not an M1A2.
In the mission "Game Over" most of the moving vehicles that the player comes across have no drivers in them.
In Al-Fulani's execution cut scene the hands of the gauges in the Mercedes are on zero throughout the entire ride.
The lasers on the rifles do not shine from the laser pointer, or any other place in particular.
At the end of the mission 'Blackout', the pilots of the Blackhawk helicopter that the team gets on are actually Russian soldiers that wear the exact same outfits as the Russian loyalists that the SAS team fought with during the mission. Why would there be Russian soldiers flying a Blackhawk helicopter? And why would they have American accents as shown when the team was picked up?
During the All Ghillied Up mission, right after the player shoots and hits Zakhaev, an enemy chopper is seen to fly through a building towards the player.
In-game text refers to the Player Character as 'their' instead of 'he' or 'she'.
The player and NPCs can be killed by cars exploding. However, gasoline is not explosive, so the cars shouldn't explode.
Certain parts of Pripyat are on fire for no reason.
In spite of the power being sabotaged, the aircraft warning lights on top of the power transmission towers are still blinking.
When a pipe is hit, it gives off steam briefly, which should depressurize it. If it gets hit again, it still gives off steam even though it should have been depressurized.
Whilst in Prypiat, you go to the top floor of a hotel and can see the Chernobyl nuclear power station only a short distance away. It is either in the town or directly outside of it. In reality, it is some miles and a half an hour drive away.
During the SAS and US Marine joint operation the team is drooped in the Altay mountains, in Central Russia, to retake the nuclear launch facility. But the next mission starts by showing the rockets simulated attack, and the launch is from the Caucasus, thousands of kilometers away from the Altay mountains.
The layout of Prypiat is completely wrong. All landmarks are in the wrong places. There is a convoluted route between the hotel (which itself has had its layout flipped) and the Ferris wheel when the two have open land between them. The open-air swimming pool shown as being between them is in a completely different direction. And the area around the Ferris wheel is much smaller than in real life. Also, nearly all windows in the town are completely intact, when they should all have been broken.
In the game's version of Pripyat, the Azure Swimming Pool is depicted as being abandoned and in a state of disrepair in 1996. In reality, the pool was still being used up until 1998.
In the second mission in which you play as a Marine, you are shown located in a city on the western coast of Saudi Arabia. The next mission you play as a marine, you are shown in a city in central Saudi Arabia. This should not be right as in both missions you are in the same city.
It's never made clear why Griggs didn't accompany the rest of the Marines when they make another attempt to capture Al-Assad but are wiped out by the nuclear explosion.
During the final mission as the helicopter destroys the bridge, Gaz shouts, "Stop the bloody truck," but he is the one driving.
Gas pronounces the term 'LZ' with the American pronunciation instead of the British pronunciation.
After he's rescued from the rebels, the Russian informant Nikolai says that "the Americans will never take Al-Asad alive". Later, he makes the seemingly contradictory claim that "Al-Asad would never sacrifice himself" for his cause.
SSG Griggs is shown wearing his Flak Jacket sleeveless indicating he is not wearing his MARPAT Top shirt underneath. Even as a Staff Non-Commisioned Officer no Senior NCO or Officer would've allowed him to leave the base without his full uniform on.