Okies i made a few screenshots while i made this:
Its only one box - textured with faces (more than you might think).
It will be the rail of the launcher where the dummy's "sledge" is leaded by. Its still missing the connections between ground and the rail, the sledge etc etc etc.
I m writing a lil tut now which should be finished tomorrow or on monday.
//Edit: I still dont like the green color. i will try to get a better color soon like this: