Unless I care squat for score (happens often ;-), I don't touch ostis & acks. They're very hard to get (well, ostis are, acks only if more than 3 are up) and worth nothing. Especially disturbing, in a fighter sortie you get squat for killing ostis, acks & boats so what's the point taking the risk. I agree, more perk for acks, count ostis & PTs as kills even in fighter sortie ...