Trying to figure out how Assault works

[Xerxes77]

I came up with the same numbers that  you did, a range of .67 to 6.7 losses with a median of about 3.7.  So it is possible, but not likely to cause no losses, an average result would be 3-4 and the maximum is 7.  If you are getting higher numbers than that, something else is going on.  Do you have the Quality Loss Modifier optional rule selected?  If you do, and it is very commonly used, then depending on the morale of the unit suffering loses, they can be either increased or decreased from 50% to 200%.  C morale units do not have their losses modified.  If that's not going on, I don't know what's causing your out of range results.

Thanks Jeff. All optional rules are turned off. However I am now running a series of tests and taking notes, and will use the Quality optional rule to see if it affects results.

Btw I'm now testing with a different title and still getting out of range casualties on a consistent basis. I believe this behavior can be replicated. I will try a few more things and share my results when the dust has settled a bit.