The helicopter Murdock was using was an MD/Hughes 500 (369). But briefly when shown in the sky at about 42 minutes in a Bell 206 JetRanger is seen.
As the A Team van heads towards the casinos first location, the number plate on the van is different 2L83000, in the next shot it's back to its usual number plate, this happens again when they park by the helicopter.
When B.A. is crossing the street after the rolling casino truck has left the warehouse, it is clearly a body double. His wig even appears to be coming away from the scull cap.