@reply to post: (AndyC)  Yes, it was more of a 'mashup' than a custom build.  This was why they could only show the front half of the environment (the pre-release version of the game they had would only show the front view, I have no idea if the final version will enable surround views) and had to hack together a method to get the projectors to turn to match the users physical orientation and then hack the ambient lighting so that the lighting behind the player matched the mood of the screen.

I though the paintball guns were a bit over the top, but I guess they added to the tension for the player.

Herbie