This is probaly wrong but what the hell . Remember how in T1 there were all those different computer screen things on the walls that looked like they came out of Star Trek? I think those are about to become interactive. You'll be able to walk up to them and cycle through all of the deployed cameras for what will be shown on the screen on the wall. So if you are in the flag room on Scarabrae and there is one of those on the wall opposite you and the flag you can deploy a camera in one of the two entrances so you can see people coming.