Special Disruption Ruling

[unonimus]

For Special Disruption Rules in [5.2] Fire Values and Modifiers, does that mean that when the unit we try to pound (which we assume that it is subject to those rules) has a 5/6 chance of Disruption (i.e. morale F), the chance is 10/6 (!) (i.e. always), or 5.5/6 (because it has a 1/6 probability of not being disrupted so it is halved)? What if it has no chance of disruption (i.e. morale A or No Effect)? Does it increase probability of being disrupted to 1/2? Or is it something else that I didn't think about?

I searched it on the forums and I couldn't find a satisfactory answer, especially to the first question. The second is my estimate/deduction from search results but I couldn't be sure.