This option works the same for Missions and MPMissions directories, there is no difference between these two directories, use them as you wish to organize your missions. Then synchronize open strategic map to your player character. This is all you need to start combat patrol mission on the current terrain using your squad. Trigger condition you can use TriggerActivated command to check if another trigger has been activated.
This page explains many mission editor features and how to do something with it, but this is not total beginner tutorial.
