[calmon]

I downloaded your first example K and build up the exact same situation 2 turns later.

I saved it and run it 20 times and your outcome happens in exactly 2 cases! In all other (18 times) the lanka commanders were fled to adjacent provinces and only your berserking troops existing in the province. (BTW: A good player would try to prevent a sucessfull excape by conquering the adjancent provinces)

At least in your first example i'm sure you tried it more than one time to get this outcome and you know that it was just luck!

So even with the fact you build up a perfect situation for a defence against MoD+Retreat you fail!