When they showed the Colossus submerging in the season preview trailer a few months ago, I just assumed that it would be used as a trick to scare the First Order off the station. It didn't quite go as I expected. Of all the ways to get to the communications array, that probably isn't in the top 100. That said, how about that CB-23? Wouldn't you all love to have your own personal little scuba droid? I honestly thought things were getting serious when they killed Bucket.