The home command station force field has three annoyances to me.
1) If you're not prepared for FF ignoring entities on the first wave(s) your stockpile of +AIP stuff that you start with gets chewed to itsy bitsy pieces.
2) Get hit with a few siege starships and the equivalent occurs.
Not really sure how to deal with those short of making the home FF not a forcefield but rather a "mega exo-shield" or something. Actually, that might not be a bad idea. Or at least, indirectly solve the "complaint" by adding a new, spawned on game start, non-rebuildable exo-shield for the command station, that would act like the exo-shield for the harvesters, except without the cloaking of course.
That wouldn't help with the other stuff, but it would be a start.
I personally would support the idea of simply doing damage transfer from those starting components (HCC, Settlements, cryopods) that are irreplaceable and game ending to the HFF. It'd go a long way to lowering the problems. It's not really late game that's a concern. By the time somthing hits your home system in the late game with enough firepower to be concerned you're probably dead. It's early/midgame waves and raiders.
Or that, make it some sort of weird "mega-multi coverage exo-shield" type thing.
3) I know it's not true but it feels like the blessed thing has as many HPs as a FF I.
Actually, except for radius and ship cap, they ARE FF Is in stats. Thanks to their radius of a Mk. II, but the Hp of a Mk. I, this makes them MORE fragile than Mk. I forcefields, albeit it does cover more.
Kind of feels like a ripoff (and nearly, but not quite, an insult) when you consider that the AI, for their initial FF over their home, is a Mk. V in name AND in stats.