B.IV series II had 2,000lb(4x500lb) internal bombload, plus it could carry 2x50gal drop tanks on the wings. Some were later converted to carry a single 4,000lb cookie. 235 of series II built.
FB.VI(series II) could carry 2x500lb bombs internally, and on the wings either: 2x500lb bombs, 8 rockets or 2x100gal drop tanks. 2,248 of series I and II built.
B.XVI had a pressurised cabin, high-altitude 70 series Merlins(~420mph!) and a maximum bombload of a single 4,000lb cookie in it's bulged bomb-bay. It could also carry 50gal drop tanks under the wings. 1200 built. Should probably be a cheap perk.
FB.XVIII "Tse Tse Fly" - a FB.VI with the 4x20mm replaced by a single 57mm Molins gun with 25 rounds. Only 25 built.
I don't see the point to nightfighter versions unless HTC adds realistic airborne radar, searchlights etc...
The problem is, having the FB.VI virtually negates any purpose to adding the Beaufighter - because the Mossie simply does everything better except for engine durability and being able to carry a torpedo. Although a Beaufighter Mk.21 with 4x20mm+4x.50in would be nice.

[This message has been edited by juzz (edited 03-19-2001).]