This map actually contained 1 lobby and 4 sub-maps. The sub-maps were:
IceValley (4 or 6 players)
BloodPalace (6 or 8 players)
EstivalWoodlancd (clan arena)
UT2004 + Rocketeer (the latest version)
UT2003 + Rocketeer (the UT2003 version)
For more details about Rocketeer, check here.
As for the sub-maps,
RockyGarden, it's a small outdoor place full of big rocks, cliffs and during the dark night you get a duel.
IceValley, like the name says, a beautiful valley covered by snow. And a river swings by.
BloodPalace, a huge cavern in deep underground, where lava sprays from the gaps.
EstivalWoodland, take a visit to this nice woodland in summer days where you feel cool but the combat is definetly hot.
As for the lobby, it's in a rainning forest where everything makes you feel wet.
So, as you can see, the main concept for this map, is nature terrain stuff. Back to those days I really enjoyed making something like this.
Since Rocketeer never officially went gold, there was no real final release for it, either this map. But this map was finished long ago.
So you can consider somewhen around late in 2004 as the map release date, when the last version of Rocketeer was released.
Sorry for the moment you have to google for it, later I will list the working links(I just lost them when my old homepage was broken two years ago)