Campaing editor seems to have trouble opening certain files and it doesn't seem to have any correlation with the extension type. In any event, I'm currently working on modifying map triggers for a specific use map settings map. I tried using some other various editing applications and they wont' open the file either. The file properties are neither read only or archive, so it should allow me to open it.
I'm trying to set up the spider mine defense map to drop 2 spider mines instead of 1. Why wouldn't it allow me to open it? Sorry im new to this, but I have created a couple dozen melee maps. Without triggers and scripts it's easy as cake. This type of modification is a little new to me. Thanks in advance.
-ChriS