Ok so how does bombing starts affect your score? Is it for every "object" destroyed that bumps your bomber score up? I ask this because I see guys with great bomber scores but I never see them in a bomber ever.
That's because for getting a real
high bomber score (top 10 or so) you have to do as much damage as possible per sortie while avoiding of being shot down at all costs.
So to get an "impressive" score, you usually have to minimize the risks by either climbing to insane altitudes or by attacking those enemy strats that are located your their own territory due to a recent capture of an enemy zone base. Unlike in other score categories, there is absolutely no point in actually engaging the enemy - you have nothing to gain from it but you can lose everything, at least score-wise (but of course, there's still that "fun" thing
)
And yes, you won't see them attacking fields, because it's not only too risky but attacking a base hurts your damage per sortie and hit%.
But you can still make it quite high on the rank list without restricing yourself to pure milkrunning... just getting to #1 will be almost impossible then.