I understand it would be used in scenarios, but don't we need other planes more? An early war German bomber is needed. The Japanese and Russian planesets need to be filled out.
I agree that the Beaufighter should be available in AH, just not before other planes. Right now we have planes that are very similar to it like the mossie, A20, B25 and Boston.
In my mind, substituting a B25 or A20 for a Beaufighter is more acceptable than subbing an A6M5 in place of a Ki43 or JU88 for a HE 111.