Given the Ruhrstahl/Kramer X-4 was wire guided I wonder if some sort of prop guard would be required?
After weapons testing with the X-4 wire-guided missile the Ar-234 was converted to pusher turboprops, which, coincidentally, led to the ability to carry a second pair of X-4's inboard of the engines & to the outer missiles being able to be brought closer in, thus reducing the loading on the outer wing sections!
The engineer in me wonders if those would be gearbox driven propellers as on Allison's propfan design or exhaust-driven propellers like the aft fans on the CF700 and CJ805-23 or the aft propfans on GE's GE36 unducted fan engine. Personally, I think the gearbox driven approach would be more feasible for the times.
The BMW concepts used a gearbox, the first design being a contra-prop with planetary gearing in a
ducted spinner, second contra-props with a long spinner, short annular intake and gear drive moved
aft to in front of the compressor.