on alpesnfung or w/e the arado 234 shows it has guns but when you push trigger nothing comes out, only the sounds of you shooting and (side note) the flettner shakes when on ground.
THe guns are the 2 20mm rear firing guns. They are in the tail, pointing backwards. I guess, the idea was to have an F9 to the scope to aim the guns, but it was never put in.
i got my first kill with those guns yesterday.....hehe...GI never saw it coming
I shot down a P47 with them once