Tuber Feed Teh Cat shows you how to get up to the Colosseum in Pacifica which we now know will be part of the Combat Zone in the upcoming expansion. There isn't much to see but it's interesting to see the scale of the place and there is a odd Netwatch patrol on a unused road with some minor voice acting. Their drones are searching a building nearby implying it may be a unfinished, cut mission.  Take a watch;