In the arming screen they don't show in none plane but in game the new 410 plane have both showing and working instead the stock have them missing as textures but firing.....
Whether for this aircraft as with others, you should
never rely on weapons for the QMB!
Start the flight with the Mk101 or 103... and look... I tested on 3 differents packs and no guns appear in this window weapons and yet they shoot...

I'm experiencing the cannon not showing also, plus I have this visual problem, holes in things ???
Is this what you mean by your text in the first post "-side views poor vision so broad"?
Your screen shows exactly the problem I cited in my post.
Google may have mistranslated my words?
In view "viewfinder very soon" or to "normal" view, the default is a little less visible.
Alas, I do not know anything about 3D! I do not know how to correct this defect!

Very nice skin desert !

[EDIT]
Au cas où Google est mal traduit, le mieux c'est une image !

The window of QMB is
not and will never be a reference!
Everything depends of the manner weapon was encoded!