[SCRIPT] What are the map_name.nodes files for?

[Romulator]

They are cache files for your pathnodes in the level, which are used by enemies to navigate around the map. You don't need to explicitly "use" them, because the game will generate them for you when your map is loaded for the first time in Amnesia, and will do all the handling for you.

All that is required of you is to place Pathnodes down in the Level Editor, and if wanted, declare a path for your enemies using script.

I don't believe PosNodes are included in the nodes file, though I would have to check.