It's the name of the subobject lol. =p
I was tired and I assumed you would know what it was and what to do with it.
To remove a subobject in game (Ridder Geel taught me how to do it and I got it to work on SEE-DC's Minas Morgul):
DaDesertWall01 is a unique name of your object in Worldbuilder (name each wall in Worldbuilder a different name)
HideDaFlag01 is a unique name for each time you hide the subobject for each object
GBCASTTOWR_U is the name of the subobject you want to hide
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