[Parasite]

2. You can fleet a cargo ship with the satellite/mine layer. Then transfer the sats you want to lanch this turn to the lancher ship. It is really a pain to do this. The same happens with cargo ships and population. You can not select which people to put down or pick up, and can not go to several planets in one turn to drop off enough to get 120 people at each place. A sad limitation of Simu movement.

3. As others said, but a multiplex 2 will allow fire at only 2 targets in one turn, 3 for three,ectera up to 5 for the max tech.

5. Each Point Defense will usually kill two missles. One the turn they fly into range and one the turn they would hit. This will sometimes not be the case if the PD ship is closing or the missile ends it's turn at range 6 with the PD range of 5. PD vs missile fights are then sharply divided. If you don't have enough PD (or have none) the missiles have a good chance of winning. If you have enough PD you will kill all the missile ships with no losses.

6. I put Emer Propulsion on ships that operate alone. These are mostly freighters on the back worlds moving pop or bringing up units, or Yard ships that can self repair the EP and use it for a speed boost. I could also see them being used in a ship version that moves to the forward training center, then gets retrofit to use the space for more useful things and gets assigned to a fleet. Too much micromanaging for me though.