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If you want a British Carrier aircraft with big guns, then the Sea Hurricane MK IIC is you best bet. It is basically a Hurricane Mk IIC with a few minor changes. It has 4 Hispano Suiza 20mm cannon with 100 RPG. (Same weapons as Typhoon except for the Ammo load) Of course, it is a lot slower than the Seafire at Sea level although faster at higher altitudes. (342mph at 22,000ft) It weighed 7300lbs on a wing area of 257.5 Sq. Ft. for a wing loading of 28.35 lbs/sq ft. The wing loading by the way compares favourably with the Seafire but the climb and power would be inferior.