Armament of Ju 88 C-2

[PreußensGlanz]

Hi
can anyone help me out with the armament of the Ju 88 C-2 in the role of a night fighter?
The more I search the more I find but the more it also contradicts.

Seems to me that the "base version" of the C-2 had 1x 20mm MG FF and 3x 7,92mm MG 17, and 1x or 2x 7,92mm MG 15 for defense.
But as a "night fighter version" it was supposed to carried at least 1x or 2x additional 20mm MG FF and for this the MG 15 of the C Stand(if I'm correct the one on the floor tray) was removed.

So although the same version as night fighter the C-2 had more canons and less mg?

With regards