I can't over emphasize the excellent work that Baffmeister has put into the CR42 and Gladiator FMs.  He has developed proper engine performance charts for different types of supercharging, and even different versions for different fuel octanes!  Plus, he has agonized over gun and ammo performance in an effort to achieve results consistent with the historical record.  Finally, he has then tweaked the end results to simulate AI dogfights that sorta/kinda match what really happened in the war torn skies of 1940.  Outstanding job! 
  
Below are shots of realistic dogfight action that were taken when testing skin artwork.  While the Gladiator's quartet of .303 Brownings was superior in most situations, British pilots were advised to avoid head-on attacks because the Bredas would outrange the Brownings and inflict damage before the Glad could even hit the CR42.  Also, the Breda's explosive bullets would often blow wings off Gladiators if they hit a wing attachment.