In message 012f01c0f2e9$510a38a0$6cb6193e@s5e8f3, Pat Sumner wildean@freedomcity.fsnet.co.uk writes
Also, later in "Cygnus Alpha", the situation gets me confused every time. Vargas, after his teleportation up to Liberator, materialises in (presumably) the teleport bay, but then walks forward, out of the teleport, towards the teleport. Unless there's another bay behind the console. But you knew all this already!
Apparently this is an example of the writer and script editor providing a coherent story, and the director then deciding that making things go bang is a lot more fun... Or less frivolously, there's a bit of explanatory footage missing wherein Vargas materialises, then goes to a position where he can cover both the console and the teleport bay. How true any of this actually is I have no idea, as I can't remember whether I heard it as fan speculation or in interviews with one of those who were in a position to know.