Wouldn't you just die if you went inside the wall anyways? Even if you didn't you only see a giant block of gray and you can't shoot out of them so whats the point? I can kind of see doing this back in like... 2008 or 2009 when you could go inside walls and shoot out of them and what not, but now it doesn't have too much of a purpose. A glitch is a glitch though, so good job anyways.