German Flame Thrower Tanks

[ComradeP]

The lowest quality value (or "letter" with its associated bonuses or penalties) is used, not the lowest assault value. The "real" assault values (that is: the value determined by a calculation involving the unit's strength and its assault value shown in the unit information sidebar) of all assaulting units are added up and compared to the combined defense value of the defenders as far as I can tell based on the information in the combat results window.