As much as I like the current claim system (in fact, it was one of the main selling points for OFF3 for me - an interactive approach), claims seem far too dependent upon wingmen. If I remember correctly, American pilots and French as well needed confirmation from ground units not fellow aviators (at least this what Rickenbacker implied in his book).Perhaps the location of the kill should impact the likelihood of successful claim such as where above the lines the battle occurred at least when there are no wingmen around to corroborate the kill claim. The devs though in all likelihood have considered this already and for whatever reason havent implemented it...