Board Thread:General Discussion/@comment-188.153.97.31-20140315133343/@comment-10993019-20140315145608

Which laser? If you're talking about Excalibur it's because the laser is fired into space and reflected off of satellites with mirrors on them, which is why it has such a long range and appears to land vertically. You can read more about it on the page for Excalibur in the design section.