Here's an easy way to create a British fighter ace. Using the mission
builder create a mission with six
BF-109s on one runway and six on another runway nearby but only to tell
them where to take off and land and don't give them anywhere to fly to.
Fly in a Spitfire MkII and start the mission near the runways. Strafe the
planes on the ground. Destroy them all. Return to base and you should get
152 points. Repeat this milrun mission 10 times and you get all the medals
and should be promoted to Group Captain.