Bombers are already ridiculously fitted in theyr ability to kill Capitals, this realy doesnt need to be exaggerated beyond this already very ridicule state. This is clearly out of balance, also because a propper defense for capitals is missing totaly.
Notice the comparison to realism for instance with the famouse Battle of Midway where 6 of 41 torpedo bombers survived surpriseattacking the japaneese Fleet from high altitude.
You want a Bomber with a high chance to kill multiple capitals and get home save easily.