Some teams may be bugged when imported with a cmp file. My suggestion is: Create a new generic team with CM, (dont create players automatically) and then import the team in the cmp file replacing the new created team. It works for me. Also, I would avoid importing specific heads and hair files with the cmp file, rather, use generic faces and eventually load the specific faces if you have themi tried to import, for my part it doesn't work, the game crashes
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I also noticed that for the WC34 through WC58 tournaments as well as for the finals until WC82 there is no replay match set up in case of a draw. I'm working on a cmc file to allow this to happen. The only thing is that, if the replay is also tied, it will have to go to penalties instead of drawing of lots as it was in reality.
The other issue regarding competition formats is the golden goal rule used in WC98 and WC02. I haven't found a way to write it in, even though the program allows for golden goal rule in friendly matches.