On a Flory Models live show I was asked about markings for Zwilling (the latest Hasegawa release include what-if bomber markings). Researching 12 air frames should be easy: sadly that isn't the case.
I looked at a couple of different sources and came away with a slightly different picture. I've included what I've found in a spreadsheet below. I've added details about the marking options included in the Italeri and earlier Hasegawa kits too.
Incidentally, the two sources of information were:
Griehl, M. and Klein, A. (2012). Die späten Varianten H-6 bis H-20 und Z =. Erlangen: AirDOC.
Theres more work to do. I've included an editable Microsoft Excel file for anyone who might have more time or reference materials.
The German Military Aviation
Special Interest Group
The Luftwaffe SIG Newsletter online edition written by SIG Leader Nathan Robinson.