[caldrail]

Was the He-280 used in active duty at all, or was it the same as with the Ta-154 (didn't go further than to testing)?

No, it remained a prototype and never saw operational use - it would have been the worlds first operational jet fighter had it done so.

Regarding german types, what about the Heinkel He115? The Folke-Wulf 187, a graceful twin engined zerstower that was tested on operations in Norway but not accepted for general service? The Dornier 24, a three engined flying boat doing those flying boat things. What about those mine clearance aircraft with huge magnetic rings? There's a few more I can't think of off-hand. Plenty for modders to work on. Think it might take a while though...