I've tried to be consistent in how I enter them in the scenario OOBs. If the piece is in the appropriate country colors (like the Australian
M13/40), I put it in with the owning nation for that scenario. In cases like the casemates in
Peace in Our Time Scenario 6, I keep the piece's original nationality and add a note in the "Additional Notes" section. I do that mostly so that we don't wind up with pieces from other countries in the Units page for each nation.
Either approach can be misleading. Peace in Our Time 6 winds up listing France among the (three) nations in the battle, despite the casemates actually being Czech.
