Just an FYI on the Balloons in the Multiplayer online. I have them in Channel Command and all of them stay in the air. none crash or cause errors. You have to go into FMB and make the START and END herigh the same value

START = 500
END = 500

START = 80
END = 80
This will keep the balloons in the air.

In the .mis it will look like this. But the END and START values MUST be the same in FMB.

Static111 Aeroanchored.Balloon_winch_UK1 gb 235160.05 232041.58 -30.00 /hstart 500
Static112 Aeroanchored.Balloon_winch_UK1 gb 234619.30 232051.11 -30.00 /hstart 80