Interesting. I was starting wonder if the drop rate was really really low for this ship, and this thread indeed confirms it. After they re-did the Y1 ships, I got all the DO ships for my Hunter in one week. During the same time, I got the NM Armor of Vows and Visible Hand in one week on my Warlock, but no Comitatus. I have gotten all of the shaders, emblems, armor, and weapons multiple times over, but that ship still eludes me. It's the only ship that I really like, but I rarely see it in fireteams/matchmaking/etc. Only a couple of the people that I play with have it.