Yes I understand u both darth_ramoth u are right that against the AI a force of 6 starfighters is enough to defend the planet and if u have some ships in orbit it can hold every scout/check mission by the oponent. And the detection Rate of the fighters is not to underestimate. and masterjojobinks u are right if u have pretty strong defences at HQ and mainshipyardplanets, because just a smal run there can bombard 14 shipyards away if they are not defended and that will change every game