Chocks Away! This brilliant Google Maps mash-up lets you fly a biplane over some very familiar territory. And, oh yes mister, you get guns. With infinite shells. And kamikaze option.
Until the Getaway 3 comes out, this is the best way to give your office that good pummeling it so richly deserves without all the nasty complications of reality.
Also available for 16 other cities, the moon and Mars.