Factual error: When Yuri is narrating about selling weapons for the US government (this was around the scene when he sells M-16's by the kilo), he mentions Lieutenant Colonel Southern. However, when you see the him, he has Colonel rank, which is a silver eagle. The Lieutenant Colonel rank is a silver leaf, not an eagle.
Factual error: When the brothers are in Beirut and apparently get shot at by unknown forces behind a wall, Yuri scrambles to grab the money he threw while ducking. As he is picking up the cash, several of the $100 bills are of the new design introduced in 1996. However, this is 1982 Beirut, shortly after the Marine Base Bombing.
Factual error: Interpol - and a specific Interpol officer - are shown carrying out raids and arrests in several different countries, interrogating suspects, and operating in the field with a variety of military and paramilitary hardware including operations from jet fighters and warships. In fact, Interpol is an information exchange and coordination agency; it has no direct investigative powers, no powers of arrest, no field agents, and certainly no warships.
Factual error: Monrovia, the capital of Liberia, is depicted with muddy ditches for roads, just one car, and the best hotel is a filthy tumbledown 3 storey building. While Liberia is quite poor, and was badly beset by the civil war, this depiction is severely exaggerated for dramatic effect. Monrovia actually has an 8 lane concrete freeway, around a dozen skyscrapers, and at rush hour traffic is heavy enough to cause traffic jams.
Factual error: When Yuri is selling 4 Glock pistols to the drug dealer, the box is open, 2 of the pistols were correct for the period Glock 19's. The 2 pistols pointing at the viewer were the later generation 3 version of the pistol which had the thumb indentations and a rail below the barrel, you can almost make out the finger groves in these pistols which weren't on the 1st generation.