I assume since you are using both of your subs you are playing Russia Restricted. I also assume you meant fighters in the north sea as infantry don’t kill boats too good.
Try this:
Attack the North Sea fleet 1BB,1Trn Brit and 1Sub,1Trn Russian with:
Baltic Sub and Trn, Finnish Ftr, Eastern Euro Ftr, German Ftr and the Ukrainian Ftr
Attack the Canadian Trn with the Western Euro Fighter
Attack the Gibralter BB with the German Bomber and the Spanish Sub
Attack the eastern Med Sub with the Italian BB and Trn.
If the Russians forget to move their fleet take the Urainian Ftr to the Eastern Med.
You should never risk your fighters to attack anything stronger than a transport without naval support.