[Plumps]

If you look carefully, you can see bomb layouts where the bomb bay doors have been removed in this picture.

Hmm not very familiar with this aircraft?? It never had any bomb bay doors, you are mixing that up with its replacement the G4M1 Betty.
If you look exactly you would see the bombs are hung up on the fuselage. Also the G3M to the G4M is more like the Do 17 to a Ju 88. The G3M is the older aircraft, and towards the end of the war completely replaced by the G4M.
But I have my doubts we will ever see the G3M for IL2 I am hoping she will appear in SoW, that is if the PTO is done with a bit more effort than Pacific Fighters which was more a poor beta version.