Here's something to remember. I was just reading this on a World of Tanks forum and it kind of makes sense. War Thunder should do this. I mean, I know you get a certain amount of xp and lions from doing damage to other planes and the big reward goes to the killer, but this would be a better way to do it, that way people wouldn't bitch so much about "kill stealing".
Rule the twelfth: There is no such thing as kill stealing.
To ‘steal’ something implies ownership in the first place. Ok, so, you did 99% damage to that tank when someone else finished him off. This is a GOOD thing. It means one less enemy tank, it means you get 99% of the XP for that tank’s demise, and it means you don’t have to wait yet another reload cycle before engaging the next enemy tank. It’s a win-win for all. If I’ve knocked 99% off of that big mean enemy king Tiger and you have a shot at him? Take the shot. By all means, kill that tank. I want you to.