I'm at best an average pilot in anything I fly, but from the answers above we can see that from GB/GS and higher 2 skilled bombers can take out everything.
Why? Because the "defenders" limitation comes from the player control:
- the player can track/shoot one attacker at a time, so the other bomber can run havoc
This way the huge caps may loose their sense.
Is there a way maybe to mod them some AI against fighters?
The rule building faction fleets number N BS, 2xN Cruiser, 4xN GB, ... any number of fighters should somehow be also true to counter such units.
If 2 bomber can counter anything they face, ...