From: Winnipeg, MB
A few days ago I took Calcutta against 2 Indian divisions and three brigades plus and I got industry undamaged except for the HI coming back at 1/2 value. Just think its strange for an 'empty' base to then have 100% HI destroyed.
The ½ value result is normal. I wonder if there is a random that causes the total loss of the industry on rare occasions? I vaguely recall having that result at least once.
FWIW, when an enemy base is unoccupied and my troops arrive, I always set the unit with the fewest AV points to attack and take it, in case the damage is related to the strength of the AV set to attack. The auto-flip happens, but there may be a check on the force being applied to make the flip happen. If the base auto-flipped when my forces were one hex away from entering, NONE of the industry is damaged, not even aircraft plants and manpower.
No matter how bad a situation is, you can always make it worse. - Chris Hadfield : An Astronaut's Guide To Life On Earth