tuton25,
No such thing as a Mosquito B.Mk VI. There was one planned as a bomber version of the FB.Mk VI but it never went further than paper. It would have used the same Merlin 25s as the FB.Mk VI had it been built. Mosquito B.Mk IVs were used on low altitude raids quite a few times, so that may be what you want. The B.Mk IV would also not be perked in the LWA and perhaps not in the MWA and would be perked in the EWA. The only misnaming HTC does on British aircraft is eliminating the letters in front of the "Mk" on some aircraft.
From memory, major wartime marks of the Mosquito:
Mosquito F.Mk II: Merlin 21s or 23s. Mid altitude fighter, some later equipped with radar, no internal bombs
Mosquito B.Mk IV: Merlin 21s or 23s. Bomber with capacity for four 500lb bombs internally.
Mosquito PR.Mk IV: Merlin 21s or 23s. Photo recon aircraft.
Mosquito FB.Mk VI: Merlin 21s, 23s or, mostly, 25s. Low altitude fighter-bomber with capacity for two 500lb bombs internally and two under the wings or rockets.
Mosquito B.Mk IX: Merlin 70 series engines. High altitude bomber with capacity for four 500lb bombs internally.
Mosquito NF.Mk XIII: Merlin 25s. Nightfighter with radar in nose, no .303s just four 20mm.
Mosquito B.Mk XVI: Merlin 72/73 or 76/77. High altitude bomber with capacity for a 4,000lb bomb and provision for a 500lb bomb under each wing.
Mosquito PR.Mk XVI: Merlin 72/73 or 76/77. High altitude photo recon aircraft.
Mosquito FB.Mk XVIII: Merlin 25s. Fighter-bomber armed with a 57mm cannon and two or four .303s.
Mosquito NF.Mk XIX: Merlin 25s with nitrous oxide injection. Nightfighter with radar in a "bullnose" and armed with four 20mm cannons.
Mosquito NF.30: Merlin 76/77. High altitude nightfighter with radar in a "bullnose" and armed with four 20mm cannons. Provision for a 500lb bomb under each wing.
