I miss the public counter that told the whole arena when someone made a kill.
Bring that back, And keep the landed kills counter.
In gameplay now, if some says "Dammit that was Fester", then we might all swarm that class of AC. Otherwise, without any form of unique plane ID in the form of non-standard markings we cannot target a particular paint scheme like some combatants did in WWI and WWII if it got out that so and so has these colors and markings.
Also on Citabria's streak suggestion, add a Perk Multiplier for every 25 Kills or something...