The Burning Crusade was an awesome time. This is a video of a Horde lead raid on Ironforge, on Outland Eu, during its former glory days. Back when it took 3 raid groups to kill the City bosses, around about the time the achievements just came in. The bosses got an upgrade for the next expansion patch and everyone wanted a mount reward.
Well Outlanders got theirs in style.
This video is very old but many people love it because of the sentimental value it has for them.