Helicopter unloading and unpowered barges

[thatguy96]

I'm sure the answer to this is that its either a) hardcoded somewhere that doesn't dare be messed with or b) would be too difficult and capable of being used unrealistically to implement. However, I am still curious as to whether or not it would be possible to allow helicopters to unload over not clear terrain, ie not land and unload which would represent troops rapelling from helicopters, using rope ladders, etc. It would also allow for sling loaded vehicles to be represented more realistically, as well as, allow for realistic transportation of boats (currently impossible because helicopters cannot land in water even with swim movement points).

This came up after I decided to see whether or not creating Airmobile Artillery Platforms as used by the US Army in the Mekong Delta could be implemented. What I current have is a standard howitzer that can be air transported and can be in water (thanks to a point of swim movement, another thing I will get to next), but this is simply allows for artillery to be emplaced on water hexes, which while realistic for this system doesn't fully represent its capabilities.

Next up is the matter of unpowered barges. Why do units with ship type movement sink in water if they are not given any swim points? Is this also hardcoded? Could this be changed to allow for static barges? This I think is a realistic consideration which does not effect gameplay negatively. Currently my barges in my pack have 1 point of swim which could be chocked up to drifting in the river if such movement were to be exploited, but realistically they should be static. Is there no way to get this without them being "immobilized" at game start?