3 easy steps and I would think easy coding to make these changes.
1. Strats which are worthless to teams anyway should be harden like HQ is. another words harden strats to be 1 building killed per 1 4k bomb at any strat and leave towns and other hangers and stuff at bases same. then the players who want ranks will now have to fight for rank against other teams towns.
( this increases fights for fighter jocks and makes those wanting low rank to stop going to undefended strats, most the time guys who are worried about score will wait till enemies strats are behind their front lines. then hit strat in ju87 for bomber score. And same with gvs. now you will have enemy defending towns and ack at bases and towns making them earn score)
this one change increases game fights as gvs and bombers now have to hit towns to get a big score. god forbid u have to fight for all scores.
2. I would make fighter vs fighter count more than fighter vs bombers. now some score jocks will only attack lone bombers or lone low formations in fighter mode to increase their hit % and lower the chance of dying to dog fight.
3.is more or less not needed but maybe a add-on. To be in rankings for top ten u must have say 30 sorties min per cat. before scores count.
first two changes would be enough I think to increase fights in the arenas. And stop those who only try for score. and will make them fight for their scores and rankings.
I have more respect for a player who is in top 10 or that area when their bombing hit % is under 400 % this tells me they bomb cvs,hangers, and other targets that help their team. anyone with 1000% or higher is not bombing for team. They are only bombing for 1 reason only! To lower rank.
I can see it now LTAR's in every bishop base. waiting for score ho's to come say hi

let the bashing begin