Ferry

[K62_]

No, IIRC it's some sort of hybrid where interdiction will remove the admin bonus but won't create additional movement costs, and it's treated otherwise as a sea hex, i.e. if you get interdiction level to 2 it switches to your control and won't allow enemy supply through.

Why the MP cost to ferry in scenario A is 5 (9-4) and scenario B is 6 (16-10)?

As mentioned above, you do get the administrative movement bonus for poor roads when moving into a ferry. In scenario B you don't get it since the administrative bonus doesn't apply to hexes next to enemy units. So you pay the full cost of 6 in this case.

[HOTEC]

The normal cost for a non-mot unit to entry a ferry hex is 6. If it triggers a combat, it must be greater than 6. I still got 5 (16-11). Why?

[Stamb]

Mountain divisions have bonuses in MP in heavy snow. Maybe this is a case?
Do you other units nearby?

[HOTEC]

Still get the -1 effect.

[HOTEC]

Any idea?