The doorman wears the normal mask. I was just there. I have never seen them wear a mask that covers the lower half of the face. Off Topic - Veronica will wear that mask over anything else, even power armor helmets or reinforced combat helmets. She looked odd wearing T-51B armor and that mask.
Really? I could have sworn...
I'll just have to play when I get home and see. I distinctly remember seeing someone with a mask that covered his mouth and not his eyes, like the face cage that hannibal lector wears in Silence of the Lambs.