They are in the database and used, but not in the .exe, one case see example of the result this via the trigger screen showing numbers for the SubType field.
(click thumb for full image)
This may or may not generate other issues elsewhere.[&:]
att:trigger-UnitDmgUnitDestroyed-postfire2.zip - Sample scene with 9008 and 9011 units to test gui (or other anomalies).
Version 1147.36/.35 (and likely all prior versions);
