My favorite memories go all the way back to the early days of the original Halo... Before Xbox live, achievements, and prepubescent boys yelling obscenities at you while kicking your a$$. My buddies and I took part in a sport we called Warthog Jousting on Blood Gulch. It involves two warthogs driving as fast as they can right at eachother trying their best to flip the other one. The old school physics made it a riot and I suggest you try it if you still have the original.