The current static perk model does little to add variation to the plane types we see in the MA. End of tour usage stats frequently show the same planes in the top ten kill percentage tour after tour.
There have been several perk discussions about why certain planes should be perked at certain values based on the overall performance of the aircraft. What I dont think has been suggested is to make the perk values based not only on usage, but also on the roll (fighter or attack) that the aircraft will be used in for the sortie.
So, this perk suggestion has two parts. One to make perk values based on usage, but also to add a second perk value to the planes which will be tied to the roll choice.
Example 1 Current Perk Value
La7: Fighter = 3 perks, Attack = 1 perks
P-47D-40: Fighter = 0 perks, Attack = 2 perks
P-51D: Fighter = 2 perks, Attack = 2 perks
Perk points are then awarded normally for targets that are scored for the particular roll that the player chose and scored at one half for targets that are scored outside of the roll.
Example 2
If a player took off in an La7 under the fighter roll, it would cost 3 perk points. Shooting down other aircraft would earn perks at the normal rate based on ENY. Killing ground targets and GVs would earn perks at half the normal rate.
To add a dynamic factor on the perk values, and in an effort to promote more diversity in the plane set, why not calculate the perk value for a plane based on its rolling average usage from previous tours?
First, give all planes a base perk value.
1. Early War (Pre 1942 models) 0 perks
2. Early War (1942 models) 1 perks
3. Mid-War (1943 models) 2 perks
4. Mid-War (1944 models) 3 perks
5. Late-War (1945 models) 4 perks
Certain planes, such as the Me-262, Me-163, Tempest would need higher base values.
At the end of the tour, the kill percentages from all planes would be calculated in both fighter and attack roles, and then their perk values for each roll would be updated. For each percent above 1 (rounded to the nearest whole number) the perk value is increased by 1 perk point from the base perk value. If the percentage is less than 0.5%, then the perk value is decreased by 1 point.
Example 3
La7: Fighter kills = 5%, Attack kills = 0.25%
P-47D-40: Fighter kills = 1%, Attack kills = 2%
P-51D: Fighter kills = 2.6%, Attack kills = 1%
Starting the next tour, the perk values would be adjusted to new values (using initial values from Example 1)
Example 4 New Perk Value
La7: Fighter = 7 perks, Attack = 0 perks (+4 perks in fighter, -1 perk in attack)
P-47D-40: Fighter = 0 perks, Attack = 3 perks (UNC in fighter, +1 in attack)
P-51D: Fighter = 4 perks, Attack = 2 perks (+3 in fighter, UNC in attack)
As each tour is completed, the perk values are updated again, following the same examples. Initially, it could be expected that the perk values would fluctuate, but eventually, the usage of most types of planes would balance out, as some planes become too expensive and others are used in their place.