Couldn't agree more. For those wondering, Rocket Arena was an amazing team game (last team alive gets a point, or optionally CTF rules) where each player starts with ALL of the weapons, armor and ammo in the game. Since everyone had a rocket launcher, railgun, grenade launcher, shotgun, etc, this focused the game on team strategy / communication and shooting accuracy rather than on timing the weapon / player health spawns. This would have been awesome by itself, but Rocket Area also made it so that rockets didn't do damage to your health (though they did hurt your armor!) so you could freely move with rocket jumping. This created unbelievable mobility and many beautiful custom maps were made; just imagine huge castles where your skill at rocket jumping allowed you to soar from turret to turret.

Here's a good video showing the mobility and skill involved in using all the weapons at once: https://www.youtube.com/watch?v=XhzK5fL1mj0

Here's some of the maps that were common: http://www.bosskey.net/q3a/maps/standard.html