That's the one... the Ryuun is a small clone of the WarMelody, which in and of itself, is a clone of an old KSSSBritish... not confusing at all... At first blush though, all looks fine, with the M01 associated with the fore as it should be:
But when you zoom-in, you notice this:
The node is "hanging" a couple of feet in the air... So the "Y" coordinate needs to be lowered to be brought down to be on the hold cover (not very "realistic"), or a platform of some sort put underneath it (again, not very "realistic", when we are talking about guns being on "hold covers"...). Better still would be to "mount" a platform, fore and aft, and put the two guns on those...
Needless to say KaleunMarco, that is a STOCK (!!!) ship, and you sir, have discovered ~another~ Stock "issue"...