"The photo" that Maggie and OA sent to the FBI HQ was of OA holding the fuel-pump kill switch in his hand, yet none of the pics up on the wall screens show OA's hand, instead showing the device on the ground next to an evidence marker.
The driver of the Jeep never got out during the assault on the truck, and stayed at the crime as the truck was stolen and disappeared. It was not present during the initial investigation.
The M995 armor-piercing ammo that was stolen is not sold at arms stores and gun shows, which is where the company owner said the shipment was headed. That type of ammo is strictly controlled, and would be moved with much greater security.
The medal and ribbon that OA displays on his desk has the ribbons of the US Army 'Soldier's Medal' awarded for non-combat heroism. But that medal is a bronze octagon, not a star.
When the FBI finds the truck and they find Kevin face down in the back of the truck then OA turns Kevin over they find a gunshot to the forehead. There should have been a big hole in the back of the head. But, there was no indication of the gunshot.