I'm definitely naive about this stuff, but there are a few things that surprised me while watching this video. I'm amazed by how much ammo they waste just shoo

I'm definitely naive about this stuff, but there are a few things that surprised me while watching this video. I'm amazed by how much ammo they waste just shooting blindly. Guys are just sticking their guns over the wall and pulling the trigger, not even seeing what they are shooting at. Its no surprise that the guy is worried that he only has 300 left toward the end of the video. I'm also surprised that they don't have a periscope to safely see over the wall. I guess stuff like this, http://abcnews.go.com/Technology/FutureTech/story?id=97778&page=1#.T2SstnJSSKo http://abcnews.go.com/Technology/FutureTech/story?id=97778&#... is really just far out research.