The "You Won't Get a Successful Uber During my Lifetime" gang was vicious, and well known in TF2. But they met their match against the "Kill 'em While at Level 1" clan. It was a "defense vs. offense" classic. Defense won after an epic Overtime in which the offense kept using snipers.
Highlight: At the last second the offense tried to sneak a spy up the middle to gain more time, but it was too well defended, and the spy got burned.