I was told the movie was realistic except for the tumble roll of the SWAT guys during time trials. However, the opening shootout with the bad guys in the street (ala North Hollywood bank shootout style) was quite disturbing. Cops are running around on the street like chickens with their heads cut off, some are behind squads, a couple have shotguns, but the police snipers just wait patiently. Apparently, they were not to shoot unless the bad guys try to get away, and so when one hops behind the wheel of the car, the sniper shoots him. At what point in time during a gun fight where cops are getting mowed down do snipers sit on their thumbs? Pa-lease!
I liked the silenced pistols during the bus hijacking. It was amazing how that little round went all the way through the driver, killing him, and then hit the window.
It was stupid when the bus pulled over without authorization. There was no reason for that to happen and even seemed to go against the grain of what was being discussed with the dispatcher.
Fun movie, but not really up to snuff and the sad part was that it was not up to snuff because of all the bragging within the movie about how good SWAT was. LA SWAT may be that good, but the movie doesn't hold up.
Oh, and in the trials in the early part of the movie, apparently finishing the course first was not significant, only the shots. Since finishing first was not significant, I am not sure why they raced.
The claymore stuff was just stupid.