Audio problem: When Ford and a terrorist are fighting in a side room, he knocks him out with the stool. He clearly grabs the stool by the metal legs, hitting him with the black cushion part and yet a metallic 'clang' can be heard. Even a metal bar against your head wouldn't make that noise.
Audio problem: The same "Ahh Jesus!" shout is heard from two different people when Air Force One tries to land at Ramstein, once by one of the hostages and once by one of the air traffic controllers.
Suggested correction: You can see him applying a detonator prior to him shooting it.
If he applied a blasting cap (detonator) he should have used it then. Just putting a detonator into C-4 doesn't all the sudden make it vulnerable to being shot, he would have to actually hit the blasting cap's wire, which is about 5mm thick and relatively short (and it would have to be one that's sensitive to gunfire). Not a very probable shot, even less so when he doesn't even look when he shoots.
Bishop73