[Q]

Correct.

One more strange thing:
Shields on troops work if you attack from the space!!!
And if you have troops and weapon platforms on a planet an attack from space seems always to destroy troops first.

It is hard to believe for me that more than a year after the release of SE IV I am the first to realize this. So I am still uncertain if I made some mistakes and would really appreciate if someone could try this and confirm or refute my results.