if you want the US wall u need to extract the .W3D's in W3DZh.BIG to get the walls working [ i enabled them an they look great

] and open the CommandButton.ini to create the Construct button and open CommandSet.ini and put the name of the command to a dozer or worker
Code: [ i think it will work]
CommandButton Command_ConstructAmericaWall
Command = DOZER_CONSTRUCT
Object = AmericaWall
TextLabel = CONTROLBAR:ConstructAmericaWall
ButtonImage = SAFence
ButtonBorderType = BUILD ; Identifier for the User as to what kind of button this is
DescriptLabel = CONTROLBAR:ToolTipUSABuildSecurityFence
End
Code:
Command_ConstructAmericaWall