Positive. The two prototypes (C.C.1 and C.C.2) were never shot down or crashed. Actually the C.C.1 might have been destroyed by bombing or something but the C.C.2 lives on in an Italian museum, in perfect condition.
It was not a jet. The flames you see were from a ring of fuel nozzles in that section of the fuselage. Heating the air going through the "tube" this increased in speed thus giving more thrust.
Prop was moved by a piston engine.