It could be anything, lots of modified files could be done by someone who doesn't know how to prevent mismatch/file rename.
Best guess is to survey which majority of the file use one particular file vs the other.
Take 30 maps, and narrow down if any give issue to what AKCoop2 filesize.
If only more than 25 match to the AKCoop2 filesize#whatever, then that's very likely the one you would keep as an original.
I did mention like 30 maps because it gives better result...
So far with DestinationUnreal's search box, only 2 maps there uses AKCoop2 file. This won't be enough to search on own though. Need to find more maps!!!http://www.destinationunreal.com/module ... ap&id=1706http://www.destinationunreal.com/module ... ap&id=2022
I wonder if Medor can helps with this?^
This is one way and there is many another way... but I'll leave that info out for anyone else want to explain.