@Anteater: All the mines should be in those same files. I think there may be a couple of M.F and subnets that spawn within particular objectives as well but as far as the campaign is concerned they should all be in that one file.
@Vindex: Placing the mines with suitable entry dates is the easy part. The harder part, as Anteater points out, is checking and editing the various shipping files so the Ai don't plow into them. It seems the IJN don't like to tell their skippers where all the big exploding mines are...
I don't think changing the depths of the ports are a great idea. The game does a good job on depth data, i think, and many ports should be deep water just like just now. As in real life, the creation of port defences should take into account the natural terrain. Some ports should, simply, be easier to get into as well.....but why would the IJN be keeping 20 oilers at dock there when they know they can't defend it?
