There wasn't that many parts to pick apart.
One view shows them climbing into a structural fire (via ladder) with no SCBA's on, then the next view shows them coming through the window with SCBA's and masks on.
Another shows a Tiller truck (with ladders AT LEAST 100ft) unable to reach the 8th floor of a building?...................ok
In reference to the building, it was scheduled to be torn down, was bought by the film crew, had a hydraulic floor that can by controlled when to collapse and can be brought back together. They totally re-walled the inside of the building with high grade aluminum so the <b>actual</b> fire they used would not destroy the building. Great movie when it comes to realistic equipment, although his PASS device should have been a deafening bit louder.
EDIT: The ventillation was right on! Loved it. I know some of you have to have at least seen previews for it. I'll be seeing it a second time for sure!