casualty defaults with heavy weapons

[lansoar]

I have noted in Winsp that the most typical kill result for weapons that are classified as heavy INF and/or AT when subjected to enemy fire/op fire are to suffer kill results of "3 casualties" when the right trigger is achieved. Admittedly it used to irritate the hell out of me...especially in cases where the units were dug in. Examples would include MMG/HMG units and AT/Howitzer units. I eventually concluded that it had a certain logic in that the crew of these units are close positioned.....and in some cases might have little to limited protection. Problem i had with it is that you could ultimately count on the event happening. fire enough rounds....you will get that classic 3 casualties in one fire phase impact and it makes up for all the prior results that include none to 1 casualties per fire round.

My question is, is this a variable factor employed when these units are subjected to enemy fire? I only have noted it in the most recent versions.