Today 95% of the players in MA fly on their own.
It is far from the way the combat missions were flown.
I think it would be very good if flight of units of 2/4/8 and so would be encouraged.
1. Provide good bonuses to fly in such units:
1.(a) Reduce a cost of perked planes for such units - pair - 10% reduction, 4 - 15% reduction, 8 - 20% reduction.
1.(b) Even if the wingman hadn't done a kill it should receive a bonus. For example for unit of two, the wingman that had lower score would receive 50% of the difference between them. For example, a pair returned where normally pilot A received 5 perk points and pilot B 1 perk point. The A would get his perks as them and B would get 3 perks - (5-1)*0.5 + 1 = 3
1.(c) Send a message for entire unit when the last surviving pilot lands, i.e. "Alpha and Bravo landed with total 5 kills (4 - Alpha,1 - Bravo)"
2. Make sure that the group operates a unit.
2. (a) if wingman has a distance with more than 12K (horizontally) it is not considered a wingman for the calculations (and they would receive a message - lost wingman/leader (and if it was a perk plane the wingmand would loose the bonus points it was given for perk plane).
2. (b) leader can let the wingman leave (disengage) - for example in case of emergency, but from this point the new damage done by the wingman would not be counted.
2. (c) for a group of 4 the separation between two pairs would be allowed bigger and the leader of 4 can release the second pair in the same way as wingman.
2. (d) for a big groups 4/8 the leader can split them and direct to some locations, lets say he can allow they to fly in square 4/5 would not be considered separation and allow the second leader of 4 or pair to request to be in some area so the separation would be allowed.
I think this would make a game-play much more interesting and mission oriented also new ranks can be added like
rank as leader of 2/4/8
Also the wingmans and leaders would be able to rank manually their commanders and wingmans - give them scores. Also the overall rank of leaders can be given such that better leaders would attract more wingmans.
The skills of the formation leader are in general very different from the single player and it would add more diversity to the game.