To make an animation like a windmill, use this.
datablock StaticShapeData(Name)
{
category = "YourCategory";
shapeFile = "./Filename.dts";
};
function Name:: onAdd(%this,%obj)
{
%obj.playThread(0,"animation");
}
Replace Youtcatagory with the name of the catagory it will be in under mission editor. change filename.dts to the dts name. Change animation to the animation's name. Include this at the top of the .mis file.