Remember the concept of "heavy" bomber was a bit different for the Axis powers. They really didn't need them (or rather heavy bombers didn't fit in to their strategy), and when they (mainly the Germans) did get their hands dirty in heavy bombers they were not all that successful for a multitude of reasons.
I think the Axis would be far better served to add in the He111.
Not only is it the biggest hole in Germany's planet set list, it is the most glaring and obvious "huh, what do you mean we don't have it?" in AH's planet set.
In general, the Japanese have there 3 most important bombers in terms of production numbers and impact (G4M Betty, Ki-67 Peggy, and B5N Kate), and the Germans have 2 of their 3 biggest players (Ju88, Ju87G), but really could use the He111. It wouldn't be a hanger queen any more than the B26 or B25. The Italians... well their P.108 performed well and had great potential but only 25 of them were built and they really didnt accomplish much or had an impact on anything.