Some people who don't like the movie are stupid. It's ok for an action movie to be unrealistic as long as the unrealistic parts are kinda humorious, car taking out helichopper, Jumping on F35.
It's not as a realistic of an action movie like the first Diehard, but come on the blonde dude was clearly dead and hanging by the neck and he kept coming back alive, and Die hard was great. So 1-2 unrealistic things ok, prob with transporter is 99% of the movie was unrealistic, not true for Live Free Die hard.
One gripe, damn terrorists were dumb to hook up the C4 to the end key on keyboard. Who ever thought of that bright idea obviously doesn't know how to check their email. What happened to just planting it in a room and using a wireless remote to set it off?