This is something I was working on a few weeks a go, but had to stop because want I wanted to do was beyond what I know.
So I'm just posting this to see if people are able to download it.
You may also need to download these:
http://www.microsoft.com/en-us/download/details.aspx?id=20914
http://www.microsoft.com/en-us/download/details.aspx?id=17851
(LMB - Shoot, R - Reload)