Does anybody have any clue how to get a platinum in the Heroes of the Fleet mission "Revenge" ?

I tried any possible loadout but I can't get anything more than a silver, all because enemy battleships have still a truckload of HP even after blowing up all their weakspots, so I either A) destroy all turrets in strike mode but end up using all rockets and too much time trying to take down the lot of Health the ships themselves still have left, or B) destroy a few turrets with rockets and spam torpedoes with the bomber because there seem to be no other way to take them down quick enough for a decent multiplier.

I don't understand what I'm doing wrong, can anybody help pls ?

Update: I "barely" got a gold medal and I'm not sure about what I did different. I usually play this mission with the Raptor and equip medium plasma + heavy machinegun for primary, and rocket pods on both secondary bays