Both versions of the fighter was used in the Fall of France. The MB.151 made it to Greece where only 9 were used against the Italians. The MB.151 was outmatched by the 109E. The MB.151 (and 152) was still used by the Vichy French. (6 groups) The groups were later transferred to Romania by the Germans.
Specs (MB.152C.1)
EXAMPLE:
Crew: 1
Length: 29ft 10in
Wingspan: 34ft 7in
Height: 9ft 11in
Wing area: 186ft squared
Empty Weight: 4,758lbs
Loaded Weight: 5,937lbs
Max Takeoff Weight: 6,173lbs
Engine: 1 × Gnome-Rhône 14N-25 14-cylinder, two-row, air-cooled radial engine, 1,030 hp
Max speed: 315mph
Range: 373mi
Service ceiling: 32,810ft
Rate of climb: 1,935ft/sec
Armament:
2x 20mm Hispano 404 cannons (60 round drum)
2x 7.5cm MAC 1934 machine guns (675 rounds)
Or
4x 7.5cm MAC 1934 machine guns

I think the MB.151 or 152 would be a much needed addition. The MB.151 or 152 would be a French plane for scenarios.