Some miscellaneous game mechanics questions.

[Beorne]

I have read all the faq and I didn't find the answers ... it is possible I overseen them, the faq is so huge ....

I'm playing in MP so the turn are synchronous and the combat strategic.

1) Mines: how to minesweep? (I have minesweepers components)
2) Satellites: in synchronous, it is some way to launch satellites in a "selective" way? In "launch remote" command I can't select the satellite, and the "launch now" command is not active.
3) Tracking: What is the usefulness of the multiplex tracking component? I haven' understood.
4) Missiles: Missile precision is always 99%. So combat sensors and ECM have no utility with/against missiles, it is right?
5) Missiles vs direct fire: In the game I'm playing I had df weapons (DU cannons), other players missiles and these shows a clear superiority against my df weapons. The ship fires missiles, flees, fires missiles and flees and so on. If the target is immobile (planet) or if it is following with direct weapons, is doomed. I feel the game is biased on missiles and other weapons are weak compared. It is true? Some tactics? Need I to research big missiles? Up to now I'm filling myself with point blank weapons to stop the shower.