This is another post that goes into more detail on the gunangles at the Thirdwire site, from The Wrench (so its not x,y,z as I initially said!! but rather left, up and down, right):
Don't know what the actual 'convergencent point ' distance is, but the angle can be adjusted in the data ini. See below, you adjus the "AimAngles="
[internalGun1]
SystemType=FIXED_GUN
GunTypeName=7.92MM_SPANDAU_LMG08/15
InputName=FIRE_PRIMARY_GUN
GunGroup=1
MuzzlePosition=-0.13,0.26,0.66
LightPosition=-0.13,0.26,0.66
AimAngles=0.0,0.0,0.0 <-- here
MaxAmmo=500
EjectShells=FALSE
MinExtentPosition=-0.17,-0.83,0.57
MaxExtentPosition=-0.07, 0.26,0.72
GunFireAnimationID=7
this is from the D7.
I remember the middle number is up/down, the 1st or 3rd should be the left/right adjustment
the 'measurment' is meters. minus numbers ie: 0.0,-1.0,0.0 would be 1 meter down from center. Plus signs are not needed.
I'd start by moving them 'in' 0.5 for the 1st number, and see where they shoot. Both guns would need to be adjusted.
BTW, minus numbers are left of center
Hope that helps
Wrench
Kevin STein