I think I've found out everything about this ship except for that boat it carries with it. I can even tell you what kind of bottom paint it uses and when it was put on (Interspeed 640TBT Free Polishing 08/05/2011) but I haven't found out the deployable boat yet.
ill have to look at the videos when i get home, my buddy works for chouest, said the alyssa is their first diesel-electric boat and the first double hulled supply boat in the fleet. she is doing some back loading now and will be doing some ROV work for us as the week goes on.
well the supply vessel is back and its close enough i could read the name of the tug manufacturer, its a Weedo 910 tug. 9 meter fiberglass tug with a standard 370 volvo and a controllable pitch propeller, pretty cool!