A guy of our league experienced a lot of trouble after migrating to steam. Before the migration all was fine an dandy, after the migration he was unable to reinstall the mod we use (a custom one). The problem automatically solved with the release of "update1" of the current build.. BUT .. now he can use the mod OFFLINE, but as soon as he try to join the server online, he receive the "mod not installed" message. Please help me find a solution.