B.A. plants a homing device inside Boyle's lighter. This would be very ineffective, since the metal case of the lighter would block the device's signal.
In the climatic battle, as Murdock & B.A. are standing beside the jeep firing at the others. Every time B.A. fires his weapon, he is closing his eyes.
While the A-Team are driving around in the jeep and Murdock is throwing the dynamite, whenever you see B.A. and Hannibal sitting in the front, at the left of the screen you see branches of a tree, revealing that they were not driving at all, but standing still.
It's quite clear that the band in the second scene is not really playing. Plus, there's the sound of several instruments not featured in the line up on stage.
When Face and Murdock enter the bar to place the tracking device in Boyles lighter, the menu on the wall behind them reads 'pop nuts' and 'pea corn' instead of 'pop corn' and 'peanuts'.