well, bombers gotta see/show something to bomb, so... i use mines on all scouts too. no fighters, no air cover.
i use 2 fighters per each db starting in 2nd wave, with fighters and maybe a scout 1st wave. all fighters on no return so it works well, i think.
but more per gb...nawww, not needed. BBs should be using scouts too. not just beotching at cvs. subs also provide limited target areas.