Long, long time lurker, but for some reason this thread has made me finally register.
Hands down the finest mod I've ever played, and indeed one of my top ten games of all time, was Air Buccaneers for UT2004. It came third (I think) in the last 'Make Something Unreal' competition.
Unfortunately, its rather tough to fully convince people of its excellence, since its a peculiar thing to describe.
Quickly: Hot air balloons + Pirates = Airbuccaneers
Huge teamwork involved, ideally need one man to fly a ship, one man to load and fire a cannon and one person to aim said cannon. Team death match, king of the hill and 'treasure hunt' game modes. You had a rope to hook on to the bottom of ships to board other vessels, gunpowder sack 'grenades' (which can be loaded into a cannon to make a flamethrower effect), sky-mines, and a community chock full of Finnish pirate-wannabes.
I really miss it to this day.
Anyone wants to take a look: http://ludocraft.oulu.fi/airbuccaneers/
UB
