@deletethis Hi!
Does this solution still work? When I'm entering the Skirmish window, I'm getting error in chat:

missing map /maps/x1ca_coop_001/x1ca_coop_001_scenario.lua
The selected map does not exist.

And this is true, exactly this name doesn't exist. Instead the first map has name "x1ca_coop_001.v0026". Of course, simple renaming it doesn't help (seems that inside there are scripts, which use the proper name)...
Any hints?
Thanks