Ok don't you think it would be a little odd hearing yourself talk while playing a fps, I mean people have their own reaction to things, and you're in another person's shoes.
I'm sick of all this it was made by Gearbox bullsh**, blue-shift and opposing force are small pieces of the half-life saga but don't effect the main flow of things (other than the fact Barney Calhoun is one person still around in hl2), the writer of half-life confirmed it and Valve owns Adrian...
The makers of half-life 2 know whats best, I mean cmon, look at hl2! Valve would definitely know if they were screwing this up. Not a single person on this thread could ever cook up a plot as creative as half-life for a video game.
I think gordon talks but you just dont hear it during gameplay, notice in Blue-Shift Dr. Rossenburg asks you a question but you respond without hearing yourself.