[Jaypack44]

Hi all- I'm currently working on a small alteration to the Normandy map, but I've run into a problem. In the large river delta/harbor on the upper right of the map, I want to replace an area of land with water. I've tried copying an area of the water and pastin it over in Map_T, I've tried it in the map editing FMB (it just shows black blotches over some of the land areas) , and it still doesn't work! what am I doing wrong?