Hello! So far I love the game, but to make it “longer” or add another layer of fun, I believe it would be a good idea to allow the players to unlock camouflages, decals and symbols for their planes.
This could be linked to a simple XP system, points in game = XP, then every 500 XP you unlock a camo/decal of your choice.
Or simply make the points and the end of battle convert to a “currency” you can use to buy camouflages, decals and similar.
It won’t be any game changer, and adds a feeling of “progression/reward to it” which doesn’t alter anything balance wise
TLDR: Pin-Up decals for planes!