Unit height below the ground?

[donken6]

What are the regulations regarding Unit height below zero?

I want to make my boss look like its more part of the icy ground instead of on it...

Simply setting min max flying height to "-450" doesnt seem to cut it. (Looks like its working in editor and or game view mode, but does not work in game)

 

[Zwiebelchen]

Set movement type to hover and negative values should work.