The following is the scoring system used by SWOTL.

Points for downing a plane:
Bf109..15 points     P-47...20 points
Fw190..16 points     P-51D..25 points
Go229..30 points     P-51B..25 points
Me262..25 points     B-17...40 points
Me163..20 points     P-39...20 points
He162..25 points     P-80...30 points
Do335..25 points

If a pilot is a TOP ACE, the point value for the kill is
200%. If the pilot is an ACE, the point value for the kill
is 150%. If the plane was flying a non-evading (formation
flying), the point value for the kill is 50%.

Ground targets:

Bomb hit.................15 points
Rocket hit...............15 points
Strafe hit...............1 point/10 hits
Building destroyed.......30 points

Points subtracted:

If a wingman and flight leader are shot down you lose 10
points.
If a plane is escorted in a flight group, you lose 20 pts.
If your own plane is shot down, you lose 40 points.
If you shoot down one of your own planes you lose 100 pts.

Bonus points:

If you land your plane at the end of the mission you get
a 25 point bonus if you are using normal flight controls
and 50 points ifyou are using advanced controls.
Mission completion bonus is 75 points.

Planes in the same bombing flight group contribute 20% of
their points to all other planes in the group.

Planes that are escorting bombers get 40% of the bomb
totals added to their scores.

Planes that are intercepting bombers have 25% of the
ground target hit points subtracted for each plane that is
successful in bombing the target.

Note: If you fly below 200 feet flak will not fire on you.

Church Steeples are indestructable.

From: Lucausfilm Games "Air Combat Strategies Book"

