[WhoDatNotSayin]

On ALL maps, every object is reproduced at the same scale, and the bomb blast should be too. I think that the Stock maps all have geographical features at the same scale as the objects (i.e. are entirely 1:1), but some mod maps may 'shrink' the large-scale geography - Canon's Channel maps for instance, and no doubt others. This should have no effect whatsoever on weapon effectiveness, aircraft performance, or anything else.