I came up with a trick to simulate live security cameras. Unfortunately, it can only be seen by spectators... but nonetheless it's a neat little addition.
What you do is make a texture with a screen in it and make the screen transparent. What I did was add semi-transparent green scanlines to enhance the illusion. Place an observer camera in front of it looking out at an area of your map... and you get:
[ame="http://www.youtube.com/watch?v=ejTbvRoRJiY"]http://www.youtube.com/watch?v=ejTbvRoRJiY[/ame]
What you do is make a texture with a screen in it and make the screen transparent. What I did was add semi-transparent green scanlines to enhance the illusion. Place an observer camera in front of it looking out at an area of your map... and you get:
[ame="http://www.youtube.com/watch?v=ejTbvRoRJiY"]http://www.youtube.com/watch?v=ejTbvRoRJiY[/ame]