My suggestion is to delete  the bombers icon and give bomber pilots a chance to survive to such a full hostile environment of AH. And I explain my self
There is no way for a medium bomber to survive in AH if spotted by the enemy.  
As a medium bomber I mean Β-25, Β-26, Ju-88, Ju-87, TBM, SBD, Boston, He-111, B5N. 
Same goes with the B-17/24 Lancaster. 
To put it simply: B-17, B-24, Lancaster, B-25, B-26, Boston , Ki-67, He-111, Ju-88, G4,  if you choose to fly ‘em  without formation then there should be no icon. 
When there are in formation the icon works as is. 
Planes like Ju-87 , TBM and B5N there must be without icons, in order to provide to these guys more chance to survive and let these planes used more. 
Planes excluded are 
the A-20 and Moss (as they also used like air superiority fighters), B-29 and A 234  (for obvious reasons), D3 A (for being super agile)  and Il-2 . Goon icon is debatable.