[617 Bomber]

The Cierva C30A tecnically works on the same principle as a plane and may only travel like a plane but i doubt it can be implemented in il-2
This particular aircraft(or whatever you want to call it) would fill a gap in european aircraft as a spotter aircraft used by the french and belgian air forces (allso used by the RAF but relegated to costal radar calibration.

[F4U-1_Corsair]

It doesn't seem too impossible, perhaps have the rotor assembly act as a stationary wing, but have an object which spins based on air speed, such as the airspeed indicator on the TB3 or Ju-52 be the actual blade. the rest would be just like a normal plane.

I don't know all the ins and outs though.