The only problem I have so far with the building destruction is one that is probably ridiculously hard to code for. And that is if you are in the building and it starts to come down you instantly die. I was in a building and heard it creaking and moaning telling me it was about to come down. I started sprinting towards a section of the house that was missing the entire corner to jump out. I was literally 3 feet from the edge when the house officially started to collapse. Technically, where I was at that point, I was in no real danger and should have been able to easily hop out and continue on my merry way. However, the game registered me as being inside the confines of the house and thus dead.
I understand its probably fucking impossible to code that for this game but in future releases, the added realism of being able to get out of the collapsing house would be nice.