You completely missed my point. And I mean completely.
I'm saying that if we introduce a plane with zero kills, who is to say squadron strength is a requirement then? Hell, you're opening the door to the Do 335 and all its ilk, and you damn well known it.
Let me just say that if we get the P-63, I'm going to start lobbying hard for the He 162, Jagdtiger, Ferdinand, G-10, and every other axis hotrod with low numbers or questionable use that I've daydreamed about flying or driving.
P-63 got kills, served in combat strength and in combat. JagdTiger did as well, and Ferdinand, and He-162 and G-10.
Do-335 however, sorry it wasn't in production. It cannot be a prototype, while the Jagdtiger's numbers were low it did serve in combat on numerous areas of operation. However - fuel and Allied tactical planes posed more of a threat to the J.tiger then anything else rendering it "useless".
Ferdinand was used in Kursk Operation, it was deemed a failure - although massive armor and an awesome gun was plagued by a simple lack of a machine gun, maneuverability and it guzzled gas like no tomarrow.
Not sure why you would want the G-10, Its inferior to the K-4 (which was in production) and marginally better then the G-14 if any at all (I can't recall). Its nothing like in the old days of Aces where the G-10 had the K-4 engine with a 20mm option.
He-162 is a questionable problem, while it was in squadron strength (A training squadron) They simply had no fuel to fly. I cannot recall if it ever flew combat missions, most likely it did because I lobbied for it a while back along with the Meteor.