POIs or Points of Interest are markers on the map, which indicate various things on the map. There are lots of different POIs avaiable in the game (e.g. school, museum, factory, tunnel). These determine where special kinds of missions and incidents can spawn. E.g. the mission "Single vehicle in tunnel" can only ever spawn, once you've set the POI "Tunnel" somewhere on the map (and fulfilled the other requirements).
If a mission requires a POI the game checks if you have set this POI within the 2 kilometre range. If you didn’t set the required POI in this area it will check if at least 2 players have set this POI in the same position. If the game can’t find a POI in the area it will not generate that mission and the mission generation process starts once again.
It’s important to note that the POIs are not set by the map or by the game. You have two options:
- You can use POIs that other players have set.
- You can set your own POIs
In the the “missions” tab of the settings you can decide whether you want to use POIS created by others (this is the default options) or you can check a box to only use your own POI.
You can create new POIs in the station window. You also have the option to show your POIs on the map in the map dropdown menu.
US: https://www.missionchief.com/