Exactly dunpeal....btw what is the fun in seeing heavy arms moving I mean its not to say that it moves real fast, its a clumsy flier (what ever little it does) and from my experiences from seeing heavy arms run out of ammo it either utilizes the little blade (which seems to be absent from the one in endless waltz from a obvious perspective), stands there and takes the punishment, uses self destruct mechanism or hides behind some obstacle. Fun isn't exactly the word I would use to explain this characteristic, I would say realism since it would be ridiculous to see heavy arms always firing and not running out of ammo.