hi , im atros from morocco & i had the same problem
try associate the files in the map directory with the commando exe file in system directory
!
How to do this ?
just simply double click on one file from Map directory in your game inst folder
u'll have a new window choose "choose a programme from a list" then browse to commado exe file located in system subdirectory of tha game folder
from now to play the game just double click on a map to launch it and play it
or go to mainpanel => so u can start a new party