So it seems to me that the Bullpup's HE ratio remains 90.
But as for AP ratio - as far as I remember, 500lb bomb has AP ratio of 8. So 1000lb bomb is 16.
That means that Bullpup's AP ratio will be around 16?
(The reason of my question is the same - I want to modify OOB file manually).
see the 1000LB bomb stats forbangs and penetrations as previously mentioned.
If you are doing this for your own purposes then you could make a separate bullpup-A (in its own weapon slot) to hang off the furies with the bang and kill stats from a 250 pounder? - see USMC weapon 195.