Having some experiance with fighterbeams mainly from playing The Babylon Project I think it shouldn't be available for fighters. It's just way too easy to hit with them, since they hit exactly were you point them without any travel time.
Now you can make them harder to use by giving them warmup time like DoS and WoD did, but that still leaves them too powerfull in player hands if you ask me. And I don't even want to know what Furys AI can do with such a weapon.
Nope, AAA turrets on bombers okay, but no main weapon beams for fighters and bombers please. At least not in WiH2, maybe in BP3 if done well and even than only very sparingly.
It might be interresting to have a non-damage targeting laser for Subspace missiles though....