I was curious about the ufo-hangar.
I started a new game on 'easy' (extra money), so I
could build an ufo-hangar in time for the first mission.
I did, and won the mission, but no effect.
E.g. no message like "ufo delivered", no new research,
no text on the ufo-hangar - screen in the base,
no extra money from sold ufo-parts, etc.
Also nothing new during the following days.
Maybe the programming is not yet finished,
or how should the ufo-hangar work ?