A3 starts with Blue Lander launch.... but didn't mention which rocket launches it....
Now showing a simplified (smaller tanks) Blue Moon lander.
That seems to be a simplified Blue Moon Mk2 lander, apparently for A3 and A4, and looking at that it seems to maintain the same crew module, but with the smaller tanks of the Mk1 lander. (maybe they should call it Mk1.5?)I wonder what vessel that is.