Of course we do CATIII approaches! What a silly question! Horizon has HGS and CAT III capability in all of our aircraft (Q-200, Q-400, and CRJ).
According to a company memo, they were just aiming for the last turnoff and fu**ed it up.
A bad day, indeed!
I can't remember the model of our HGS, but it does provide a countdown of runway remaining, as well as a flare cue and centerline guidance.
Oh, and we don't even operate any Dash 100s anymore. It was a Q400.