Why does a unit's CV drop immediately and drastically when it becomes isolated? The unit can still have high levels of supply, fuel and ammunition but its CV can drop as much as 90%.
Section 15.2.1 says "Isolated units suffer a supply related CV penalty that is equal to the percentage of needed supplies (or fuel for motorized units) times the percentage of needed ammo. In addition, when calculating the modified CV ratio to determine whether a defender will be required to retreat, isolated defending units may have their CV divided by ten if they fail certain checks."
Does this mean an isolated unit's attack value doesn't get divided by ten? For example, if a motorized unit's CV is 10 and it has 80% fuel and 50% ammo when it gets isolated, is its attack value modified to 10 x 0.80 x 0.50 = 4.0?
In any case, the displayed CV appears to be modified by a factor of ten. Are the attacking and defending CV's different for isolated units? If they are, which CV is displayed?
Two broken Tigers on fire in the night,
Flicker their souls to the wind...
Al Stewart, "Roads to Moscow"