Dont know nothing about the change in detect missions, but the KDY-150 protect the planet against the bombarment. Dont know exactly the effect, but i see that one KDY-150 is enough to defend a planet against a corellian or carrack bombarment capacity.

I think that the KDY disables 1 of the atacking ships. so if just one bombards its always blocked

I think you might be right about the KDY helping to thrwart missions, I believe every unit has some detection value, so even if it is not that wonderful at defending systems, at least its good at detection as well as being cover for evacuation. That's about the only use I see out of them.

 

The main planets I use them on though are only ones where characters reside, especially Coruscant and Rebel HQ. On these last two, I tend to go with tripple defenses across the board compared to other important systems.

 

With Rebed I made my game so Rebel HQ and Coruscant were maxed out facility-wise, making them stronghold type worlds (approximately 130 energy slots). I have anywhere from 6-9 of every shield and gun battery and up to four times the troops and fighter squads of other important systems.

but so we are at :

 

2Shields, 1 LNR, 1KDY, some troops and fighters

 

thats high Mainanace for nothing

 

In my (multiplayer) experience, 2 Gencores are absolutely vital. Otherwise a rogue fleet behind your lines can quickly bombard your mines/refineries and thus your economical base to dust which ultimately loses you the game or worse still they can assault and scrap also destroying them but adding the cost to his refined materials to boot. Of course he may sabotage the gencores, but that takes some time. Also unless he has intelligence on the target planet, he risks losing the sabotaging personnel if you have troops and a general there.

 

I feel fighters are not always advisable. A large attacking fleet will generally wipe the floor with a few fighters so the cost is wasted.