RE: "Gun Camera".....??
This is a pretty cheap addition. I have one in the mantlet of my Tiger1. A key part would be the RCA to USB converter that allows the TV picture to stream through a computer. This has been an exciting setup as I have a CO2 cannon and laser aiming guide on board. Allows me to sit inside and hunt out in the yard. Im working on TCP/IP protocols now so someone with a web browser can control the tank and watch on their screen anywhere in the world.
Perry