@Iranon Not sure why you are hung up on the size of sensors (I was talking about fire-controls)... the only thing I said was that you need a sensor eight times larger and that it is possible, the sizes was clearly just examples. I also clearly said this type of ship would not be meant to target long range bombers directly.
In my opinion a larger bomber that carry more missiles per tonage is much more efficient than a smaller fighter for the purpose of long range engagements.
The precise range and engagement ranges will be moot because it will still be about which side find the others first that will have the major advantage.
There is no point in sending in fighters with large resolution fire-controlls before you localize those ships. That will be hard with a good anti-fighter screen of smallish sensor crafts/ships.
This could be the role of a Destroyer to support. They would not be deployed as one solution but as part of a combined force.
One size 8 missile on a 180t scout is a pretty small threat in general to a decent anti-missile screen, especially if the opponent knows the threat vector and you send missile with a slow second stage very large missile.
A larger bomber will be able to mount more missiles. And if you neutralize the opponents scout forces, even temporarily you can fire outside the threat range relatively easily and will not need to use a second stage missile.
When I mention you can have long range anti-fighter missiles I don't mean against long range bombers but rather to engage medium to short range fighters who most be much closer to engage your scout screen.
As I said, these destroyers would need to use AMM and interceptors to defend against long range bombers... I think this is a good balance and give you choices to work with and use more tactics than you did before.
I would allways station a few interceptors on each destroyers in addition to a few sensor scouts. Carriers would have a wide mix of fighters but would carry the fleets main bomber wings.
You also need to consider that some strategies are not allowed in RP even if they are technically viable. For example would I never allow for longer deployment small fighter craft in anything but very small numbers because it is unrealistic form a human perspective and I mostly play human campaigns. It should be extremely rare to find military ships with more the 12 month deployments, humans simply don't function that well when confined to small spaces with limited social interactions, the smaller the crew the worse it is.