An armored car crew usually consists of three people: driver, guard, and a hopper, whose job is to transfer the valuables between the car and client's facility. The most dangerous part of the transfer is when the hopper enters or exits the vehicle.
While speaking to Maggie about OA after he had made up a war encounter scenario, Dana says OA might be projecting his own trauma onto the conspirator. Contrary to what many people in the legal field use, the word conspirator is the correct term here. The term often used incorrectly is co-conspirator.