1. Get the mission to retrieve the plasma device to operate the teleporter.

2.When you are almost in front of the room where it is kept, look around you, there is an office of Andy Chang, as the sign says. Enter it, kill the zombie (of course he can watch the message with you).

3. Then look at the computer, under the UAC logo there is data writing, one of the lines says: "c::Scanning data > load esta.og > ld" (it's "ld", not "id").

4. Esta.og backwards = Go.atse