Corrected entry: After the explosion - I think the first one - the terrorists are going around killing the security men and taking their weapons - with one security man down and his gun on the floor, there is a yellow marker under his gun, we see the marker when the gun is taken. Maybe the yellow marker is there as a position marker, so the actor knows where to put his gun after he has been "killed" and fallen down. (00:31:50)
Corrected entry: The 8 minute countdown for the raptor strike lasted 13 minutes.
Corrected entry: While there is such thing as a "surface-to-air" Javelin missile of British design, the one being deployed in this film in the helicopter scene is the American made anti-tank weapon.
Correction: The FGM-148 Javelin is a United States made man-portable fire-and-forget anti-tank missile. While its primary role is in anti-armor operations it is also a select fire weapon capable of fire-mode selection between 2 modes. The first being the familiar Top-Down attack mode where the warhead can fly up 500 feet and land on the target from above. The second mode, as demonstrated in this movie, is the Direct Attack mode which allows it to engage covered targets, bunkers, buildings and helicopters. The missile has an infrared guided warhead hence the fire and forget moniker and is fully capable of engaging any target of significant heat source under 500 feet.
Corrected entry: At the end of the movie, Tatum turns a large 50 caliber weapon on the villain of the movie and fires it rapid fire repeatedly at him, killing him. A shot later from a distance, you see the villain just crumple over and fall down dead, barely any damage visible to him. Had this been real life, a high caliber weapon like that fired at such close range for such a long time would have torn his body to shreds, not left it intact for him to fall over. But this movie was rated PG-13, and showing the gore that would really have resulted in would have made it R.
Correction: The weapon was not a .50 caliber Browning Machine Gun as used against the approaching Delta Force Blackhawks. It was a Dillon Aero Mini-Gun chambered in 5.56mm, also known as .223 caliber - a significantly smaller and less powerful round. This is the same as used by the M-4, AR-15, M-16 and other variants. While the rate of fire alone would be capable of doing the described action, in the movie scene he did miss a lot; tearing up the wall above and around him as well.
Corrected entry: After Foxx and Tatum go through the gate to the basement they leave the gate open. When the bad guys show up the gate is closed. (01:09:05)
Correction: You hear the gate close as they are walking away.
Correction: The 'marker' actually looks like it is a metal plate with screws attached to the floor itself. So I don't think it is a marker at all.